ordre

- Ajout d'un système de recherche avec bouton "Rechercher"
- Support de la validation par touche Entrée
- Recherche côté serveur avec filtres MongoDB sur nom et email
- Réinitialisation automatique de la page lors d'une nouvelle recherche
- Suppression du debounce automatique pour un contrôle utilisateur total

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

.claude/settings.local.json

@@ -0,0 +1,21 @@
+{
+  "permissions": {
+    "allow": [
+      "Bash(cat:*)",
+      "Bash(awk:*)",
+      "Bash(useCollection.tmp)",
+      "Bash(npm run build:*)",
+      "Bash(git add:*)",
+      "Bash(git commit:*)",
+      "Bash(git push)",
+      "Bash(npm install:*)",
+      "Bash(node debug-search.js:*)",
+      "Bash(node update-referent.js:*)",
+      "Bash(node:*)",
+      "Bash(curl:*)",
+      "Bash(npx tsc:*)"
+    ],
+    "deny": [],
+    "ask": []
+  }
+}

CLAUDE.md

@@ -0,0 +1,13 @@
+## CRITICAL: File Editing on Windows
+
+### ⚠️ MANDATORY: Always Use Backslashes on Windows for File Paths
+
+When using Edit or MultiEdit tools on Windows, you MUST use backslashes (\) in file paths, NOT forward slashes (/).
+
+#### ❌ WRONG - Will cause errors:
+
+Edit(file_path: "D:/repos/project/file.tsx", ...)
+
+#### ✅ CORRECT - Always works:
+
+Edit(file_path: "D:\repos\project\file.tsx", ...)

app/analytics/page.tsx

@@ -2,6 +2,7 @@ import { Suspense } from "react";
 import { Card, CardContent } from "@/components/ui/card";
 import { UsageAnalytics } from "@/components/dashboard/usage-analytics";
 import { RecentTransactions } from "@/components/dashboard/recent-transactions";
+
 import { BarChart3 } from "lucide-react";
 
 function AnalyticsSkeleton() {

app/api/add-credits-single/route.ts

@@ -0,0 +1,117 @@
+import { NextResponse } from "next/server";
+import { getDatabase } from "@/lib/db/mongodb";
+import { ObjectId } from "mongodb";
+
+export async function POST(request: Request) {
+  try {
+    const { userId } = await request.json();
+
+    if (!userId) {
+      return NextResponse.json(
+        { success: false, error: "userId est requis" },
+        { status: 400 }
+      );
+    }
+
+    const db = await getDatabase();
+    const CREDITS_TO_ADD = 3000000; // 3 millions de tokens
+
+    // Vérifier que l'utilisateur existe
+    let userObjectId: ObjectId;
+    try {
+      userObjectId = new ObjectId(userId);
+    } catch {
+      return NextResponse.json(
+        { success: false, error: "ID utilisateur invalide" },
+        { status: 400 }
+      );
+    }
+
+    const user = await db.collection("users").findOne({ _id: userObjectId });
+
+    if (!user) {
+      return NextResponse.json(
+        { success: false, error: "Utilisateur non trouvé" },
+        { status: 404 }
+      );
+    }
+
+    console.log(
+      `🎯 Ajout de ${CREDITS_TO_ADD.toLocaleString()} crédits à: ${user.email || user.name}`
+    );
+
+    // Chercher la balance existante - essayer avec ObjectId ET string
+    let existingBalance = await db
+      .collection("balances")
+      .findOne({ user: userObjectId });
+
+    // Si pas trouvé avec ObjectId, essayer avec string
+    if (!existingBalance) {
+      existingBalance = await db
+        .collection("balances")
+        .findOne({ user: userId });
+    }
+
+    console.log(`📊 Balance existante trouvée: ${existingBalance ? "OUI" : "NON"}`);
+    if (existingBalance) {
+      console.log(`📊 Balance ID: ${existingBalance._id}, Crédits actuels: ${existingBalance.tokenCredits}`);
+    }
+
+    let newBalance: number;
+
+    if (existingBalance) {
+      // Mettre à jour la balance existante avec $inc pour être sûr
+      const currentCredits = existingBalance.tokenCredits || 0;
+      newBalance = currentCredits + CREDITS_TO_ADD;
+
+      const updateResult = await db.collection("balances").updateOne(
+        { _id: existingBalance._id },
+        {
+          $inc: { tokenCredits: CREDITS_TO_ADD },
+          $set: { lastRefill: new Date() },
+        }
+      );
+
+      console.log(`✅ Update result: matchedCount=${updateResult.matchedCount}, modifiedCount=${updateResult.modifiedCount}`);
+      console.log(
+        `✅ Balance mise à jour: ${currentCredits.toLocaleString()} → ${newBalance.toLocaleString()}`
+      );
+    } else {
+      // Créer une nouvelle balance
+      newBalance = CREDITS_TO_ADD;
+
+      const insertResult = await db.collection("balances").insertOne({
+        user: userObjectId,
+        tokenCredits: newBalance,
+        autoRefillEnabled: false,
+        lastRefill: new Date(),
+        refillAmount: 0,
+        refillIntervalUnit: "month",
+        refillIntervalValue: 1,
+        __v: 0,
+      });
+
+      console.log(`🆕 Nouvelle balance créée: ${insertResult.insertedId} avec ${newBalance.toLocaleString()} crédits`);
+    }
+
+    return NextResponse.json({
+      success: true,
+      message: `${CREDITS_TO_ADD.toLocaleString()} crédits ajoutés à ${user.email || user.name}`,
+      newBalance,
+      user: {
+        id: user._id.toString(),
+        name: user.name,
+        email: user.email,
+      },
+    });
+  } catch (error) {
+    console.error("Erreur lors de l'ajout des crédits:", error);
+    return NextResponse.json(
+      {
+        success: false,
+        error: "Erreur serveur lors de l'ajout des crédits",
+      },
+      { status: 500 }
+    );
+  }
+}

app/api/add-credits/route.ts

@@ -0,0 +1,139 @@
+import { NextResponse } from "next/server";
+import { getDatabase } from "@/lib/db/mongodb";
+
+export async function POST() {
+  try {
+    const db = await getDatabase();
+    const CREDITS_TO_ADD = 3000000; // 3 millions de tokens
+
+    console.log(
+      `🚀 DÉBUT: Ajout de ${CREDITS_TO_ADD.toLocaleString()} crédits à tous les utilisateurs`
+    );
+
+    // Récupérer tous les utilisateurs existants
+    const users = await db.collection("users").find({}).toArray();
+    console.log(`👥 Utilisateurs trouvés: ${users.length}`);
+
+    if (users.length === 0) {
+      return NextResponse.json({
+        success: false,
+        message: "Aucun utilisateur trouvé",
+      });
+    }
+
+    // Récupérer toutes les balances existantes
+    const existingBalances = await db.collection("balances").find({}).toArray();
+    const existingBalanceUserIds = new Set(
+      existingBalances.map((balance) => balance.user.toString())
+    );
+
+    console.log(`💰 Balances existantes: ${existingBalances.length}`);
+
+    let updatedCount = 0;
+    let createdCount = 0;
+    let totalCreditsAdded = 0;
+
+    // Pour chaque utilisateur
+    for (const user of users) {
+      const userId = user._id;
+
+      if (existingBalanceUserIds.has(userId.toString())) {
+        // Utilisateur a déjà une balance - ajouter les crédits
+        const updateResult = await db.collection("balances").updateOne(
+          { user: userId },
+          {
+            $inc: { tokenCredits: CREDITS_TO_ADD },
+            $set: { lastRefill: new Date() },
+          }
+        );
+
+        if (updateResult.modifiedCount > 0) {
+          updatedCount++;
+          totalCreditsAdded += CREDITS_TO_ADD;
+          console.log(
+            `✅ Crédits ajoutés pour l'utilisateur: ${user.email || user.name}`
+          );
+        }
+      } else {
+        // Utilisateur n'a pas de balance - créer une nouvelle balance
+        const newBalance = {
+          user: userId,
+          tokenCredits: CREDITS_TO_ADD,
+          autoRefillEnabled: false,
+          lastRefill: new Date(),
+          refillAmount: 0,
+          refillIntervalUnit: "month",
+          refillIntervalValue: 1,
+          __v: 0,
+        };
+
+        await db.collection("balances").insertOne(newBalance);
+        createdCount++;
+        totalCreditsAdded += CREDITS_TO_ADD;
+        console.log(
+          `🆕 Nouvelle balance créée pour: ${user.email || user.name}`
+        );
+      }
+    }
+
+    console.log(`✅ TERMINÉ:`);
+    console.log(`- Balances mises à jour: ${updatedCount}`);
+    console.log(`- Nouvelles balances créées: ${createdCount}`);
+    console.log(
+      `- Total crédits ajoutés: ${totalCreditsAdded.toLocaleString()}`
+    );
+
+    return NextResponse.json({
+      success: true,
+      statistics: {
+        totalUsers: users.length,
+        updatedBalances: updatedCount,
+        createdBalances: createdCount,
+        creditsPerUser: CREDITS_TO_ADD,
+        totalCreditsAdded,
+      },
+      message: `${CREDITS_TO_ADD.toLocaleString()} crédits ajoutés à ${
+        users.length
+      } utilisateurs (${updatedCount} mis à jour, ${createdCount} créés)`,
+    });
+  } catch (error) {
+    console.error("Erreur lors de l'ajout des crédits:", error);
+    return NextResponse.json(
+      {
+        success: false,
+        error: "Erreur serveur lors de l'ajout des crédits",
+      },
+      { status: 500 }
+    );
+  }
+}
+
+// Endpoint pour vérifier les crédits actuels
+export async function GET() {
+  try {
+    const db = await getDatabase();
+
+    const users = await db.collection("users").find({}).toArray();
+    const balances = await db.collection("balances").find({}).toArray();
+
+    const totalCredits = balances.reduce(
+      (sum, balance) => sum + (balance.tokenCredits || 0),
+      0
+    );
+    const averageCredits =
+      balances.length > 0 ? totalCredits / balances.length : 0;
+
+    return NextResponse.json({
+      statistics: {
+        totalUsers: users.length,
+        totalBalances: balances.length,
+        totalCredits,
+        averageCredits: Math.round(averageCredits),
+        usersWithoutBalance: users.length - balances.length,
+      },
+    });
+  } catch (error) {
+    console.error("Erreur lors de la récupération des statistiques:", error);
+    return NextResponse.json({ error: "Erreur serveur" }, { status: 500 });
+  }
+}

app/api/cleanup/balances/route.ts

@@ -0,0 +1,104 @@
+import { NextResponse } from "next/server";
+import { getDatabase } from "@/lib/db/mongodb";
+
+export async function POST() {
+  try {
+    const db = await getDatabase();
+
+    // Récupérer tous les utilisateurs existants
+    const users = await db.collection("users").find({}).toArray();
+    const userIds = new Set(users.map(user => user._id.toString()));
+
+    // Récupérer toutes les balances
+    const balances = await db.collection("balances").find({}).toArray();
+
+    // Identifier les balances fantômes
+    const phantomBalances = balances.filter(balance => 
+      !userIds.has(balance.user.toString())
+    );
+
+    // Calculer les statistiques avant nettoyage
+    const totalBalances = balances.length;
+    const phantomCount = phantomBalances.length;
+    const phantomCredits = phantomBalances.reduce(
+      (sum, balance) => sum + (balance.tokenCredits || 0), 
+      0
+    );
+
+    console.log(`🗑️ SUPPRESSION: ${phantomCount} balances fantômes détectées`);
+    console.log(`💰 CRÉDITS FANTÔMES: ${phantomCredits}`);
+
+    // SUPPRESSION DÉFINITIVE des balances fantômes
+    const deleteResult = await db.collection("balances").deleteMany({
+      user: { $nin: Array.from(userIds) }
+    });
+
+    console.log(`✅ SUPPRIMÉES: ${deleteResult.deletedCount} balances`);
+
+    return NextResponse.json({
+      success: true,
+      statistics: {
+        totalBalances,
+        phantomCount,
+        phantomCredits,
+        cleanedCount: deleteResult.deletedCount
+      },
+      message: `${deleteResult.deletedCount} balances fantômes supprimées définitivement`
+    });
+
+  } catch (error) {
+    console.error("Erreur lors du nettoyage des balances:", error);
+    return NextResponse.json({ error: "Erreur serveur" }, { status: 500 });
+  }
+}
+
+// Endpoint pour analyser sans nettoyer
+export async function GET() {
+  try {
+    const db = await getDatabase();
+
+    const users = await db.collection("users").find({}).toArray();
+    const userIds = new Set(users.map(user => user._id.toString()));
+
+    const balances = await db.collection("balances").find({}).toArray();
+
+    const phantomBalances = balances.filter(balance => 
+      !userIds.has(balance.user.toString())
+    );
+
+    const phantomCredits = phantomBalances.reduce(
+      (sum, balance) => sum + (balance.tokenCredits || 0), 
+      0
+    );
+
+    // Analyser les doublons aussi
+    const userCounts = new Map<string, number>();
+    balances.forEach(balance => {
+      const userId = balance.user.toString();
+      userCounts.set(userId, (userCounts.get(userId) || 0) + 1);
+    });
+
+    const duplicates = Array.from(userCounts.entries())
+      .filter(([, count]) => count > 1)
+      .map(([userId, count]) => ({
+        userId,
+        count,
+        isPhantom: !userIds.has(userId)
+      }));
+
+    return NextResponse.json({
+      analysis: {
+        totalBalances: balances.length,
+        totalUsers: users.length,
+        phantomBalances: phantomBalances.length,
+        phantomCredits,
+        duplicateUsers: duplicates.length,
+        duplicates: duplicates.slice(0, 10) // Premiers 10 exemples
+      }
+    });
+
+  } catch (error) {
+    console.error("Erreur lors de l'analyse des balances:", error);
+    return NextResponse.json({ error: "Erreur serveur" }, { status: 500 });
+  }
+}

app/api/collections/[collection]/route.ts

@@ -1,12 +1,35 @@
-import { NextRequest, NextResponse } from 'next/server';
-import { getDatabase } from '@/lib/db/mongodb';
+import { NextRequest, NextResponse } from "next/server";
+import { getDatabase } from "@/lib/db/mongodb";
+import { ObjectId } from "mongodb";
 
 const ALLOWED_COLLECTIONS = [
-  'accessroles', 'aclentries', 'actions', 'agentcategories', 'agents',
-  'assistants', 'balances', 'banners', 'conversations', 'conversationtags',
-  'files', 'groups', 'keys', 'memoryentries', 'messages', 'pluginauths',
-  'presets', 'projects', 'promptgroups', 'prompts', 'roles', 'sessions',
-  'sharedlinks', 'tokens', 'toolcalls', 'transactions', 'users'
+  "accessroles",
+  "aclentries",
+  "actions",
+  "agentcategories",
+  "agents",
+  "assistants",
+  "balances",
+  "banners",
+  "conversations",
+  "conversationtags",
+  "files",
+  "groups",
+  "keys",
+  "memoryentries",
+  "messages",
+  "pluginauths",
+  "presets",
+  "projects",
+  "promptgroups",
+  "prompts",
+  "roles",
+  "sessions",
+  "sharedlinks",
+  "tokens",
+  "toolcalls",
+  "transactions",
+  "users",
 ];
 
 export async function GET(
@@ -16,44 +39,128 @@ export async function GET(
   const { collection } = await params;
 
   try {
-    
     if (!ALLOWED_COLLECTIONS.includes(collection)) {
       return NextResponse.json(
-        { error: 'Collection non autorisée' },
+        { error: "Collection non autorisée" },
         { status: 400 }
       );
     }
 
     const { searchParams } = new URL(request.url);
-    const page = parseInt(searchParams.get('page') || '1');
-    const limit = parseInt(searchParams.get('limit') || '20');
-    const filter = JSON.parse(searchParams.get('filter') || '{}');
+    const page = parseInt(searchParams.get("page") || "1");
+    const limit = parseInt(searchParams.get("limit") || "20");
+    const filter = JSON.parse(searchParams.get("filter") || "{}");
+
+    // Debug logging pour messages
+    if (collection === "messages") {
+      console.log("[API Messages] Filter reçu:", JSON.stringify(filter));
+      console.log("[API Messages] Raw filter param:", searchParams.get("filter"));
+    }
+
+    // Gestion spéciale pour la collection users avec recherche par email ou id
+    if (collection === "users") {
+      const email = searchParams.get("email");
+      const id = searchParams.get("id");
+      const search = searchParams.get("search");
+      const referent = searchParams.get("referent");
+
+      if (email) {
+        filter.email = email.toLowerCase();
+      } else if (id) {
+        if (ObjectId.isValid(id)) {
+          filter._id = new ObjectId(id);
+        } else {
+          return NextResponse.json(
+            { error: "ID utilisateur invalide" },
+            { status: 400 }
+          );
+        }
+      } else if (search) {
+        filter.$or = [
+          { name: { $regex: search, $options: "i" } },
+          { email: { $regex: search, $options: "i" } },
+        ];
+      }
+
+      // Filtre par référent (peut être combiné avec search)
+      if (referent) {
+        filter.referent = referent;
+      }
+    }
+
+    // Gestion spéciale pour conversations - recherche par nom/email d'utilisateur
+    if (collection === "conversations") {
+      const search = searchParams.get("search");
+      const userId = searchParams.get("userId");
+
+      if (userId) {
+        // Recherche directe par userId (stocké comme string dans conversations)
+        filter.user = userId;
+      } else if (search && search.trim()) {
+        // Normaliser la recherche (enlever accents pour recherche insensible aux accents)
+        const normalizedSearch = search
+          .normalize("NFD")
+          .replace(/[\u0300-\u036f]/g, "");
+
+        const db = await getDatabase();
+
+        // Recherche users avec nom/email/username (insensible casse + accents)
+        const matchingUsers = await db
+          .collection("users")
+          .find({
+            $or: [
+              { name: { $regex: normalizedSearch, $options: "i" } },
+              { email: { $regex: normalizedSearch, $options: "i" } },
+              { username: { $regex: normalizedSearch, $options: "i" } },
+            ],
+          })
+          .project({ _id: 1 })
+          .toArray();
+
+        if (matchingUsers.length > 0) {
+          // IMPORTANT: Convertir en strings car user dans conversations est stocké comme string
+          const userIds = matchingUsers.map((u) => u._id.toString());
+          filter.user = { $in: userIds };
+        } else {
+          return NextResponse.json({
+            data: [],
+            total: 0,
+            page,
+            limit,
+            totalPages: 0,
+          });
+        }
+      }
+    }
 
     const db = await getDatabase();
     const skip = (page - 1) * limit;
 
     const [data, total] = await Promise.all([
-      db.collection(collection)
+      db
+        .collection(collection)
         .find(filter)
         .skip(skip)
         .limit(limit)
         .sort({ createdAt: -1 })
         .toArray(),
-      db.collection(collection).countDocuments(filter)
+      db.collection(collection).countDocuments(filter),
     ]);
 
+    // Debug logging pour messages
+    if (collection === "messages") {
+      console.log("[API Messages] Résultats:", data.length, "messages, total:", total);
+    }
+
     return NextResponse.json({
       data,
       total,
       page,
       limit,
-      totalPages: Math.ceil(total / limit)
+      totalPages: Math.ceil(total / limit),
     });
   } catch (error) {
     console.error(`Erreur lors de la récupération de ${collection}:`, error);
-    return NextResponse.json(
-      { error: 'Erreur serveur' },
-      { status: 500 }
-    );
+    return NextResponse.json({ error: "Erreur serveur" }, { status: 500 });
   }
 }

app/api/create-user/route.ts

@@ -0,0 +1,126 @@
+import { NextRequest, NextResponse } from "next/server";
+import { getDatabase } from "@/lib/db/mongodb";
+import bcrypt from "bcryptjs";
+import { ObjectId } from "mongodb";
+
+export async function POST(request: NextRequest) {
+  try {
+    const { name, email, password, role = "USER" } = await request.json();
+
+    // Validation des données
+    if (!name || !email || !password) {
+      return NextResponse.json(
+        { error: "Nom, email et mot de passe sont requis" },
+        { status: 400 }
+      );
+    }
+
+    // Validation de l'email
+    const emailRegex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
+    if (!emailRegex.test(email)) {
+      return NextResponse.json(
+        { error: "Format d'email invalide" },
+        { status: 400 }
+      );
+    }
+
+    // Validation du mot de passe (minimum 8 caractères)
+    if (password.length < 8) {
+      return NextResponse.json(
+        { error: "Le mot de passe doit contenir au moins 8 caractères" },
+        { status: 400 }
+      );
+    }
+
+    // Validation du rôle
+    if (!["USER", "ADMIN"].includes(role)) {
+      return NextResponse.json(
+        { error: "Rôle invalide. Doit être USER ou ADMIN" },
+        { status: 400 }
+      );
+    }
+
+    const db = await getDatabase();
+
+    // Vérifier si l'utilisateur existe déjà
+    const existingUser = await db.collection("users").findOne({ email });
+    if (existingUser) {
+      return NextResponse.json(
+        { error: "Un utilisateur avec cet email existe déjà" },
+        { status: 409 }
+      );
+    }
+
+    // Hasher le mot de passe
+    const saltRounds = 12;
+    const hashedPassword = await bcrypt.hash(password, saltRounds);
+
+    // Créer le nouvel utilisateur
+    const newUser = {
+      name,
+      username: email.split("@")[0], // Utiliser la partie avant @ comme username
+      email,
+      emailVerified: false,
+      password: hashedPassword,
+      avatar: null,
+      provider: "local",
+      role,
+      plugins: [],
+      twoFactorEnabled: false,
+      termsAccepted: true,
+      personalization: {
+        memories: false,
+        _id: new ObjectId(),
+      },
+      backupCodes: [],
+      refreshToken: [],
+      createdAt: new Date(),
+      updatedAt: new Date(),
+      __v: 0,
+    };
+
+    // Insérer l'utilisateur dans la base de données
+    const result = await db.collection("users").insertOne(newUser);
+
+    if (!result.insertedId) {
+      return NextResponse.json(
+        { error: "Erreur lors de la création de l'utilisateur" },
+        { status: 500 }
+      );
+    }
+
+    // Créer une balance initiale pour l'utilisateur
+    const initialBalance = {
+      user: result.insertedId,
+      tokenCredits: 3000000, // 3 millions de tokens par défaut
+      autoRefillEnabled: false,
+      lastRefill: new Date(),
+      refillAmount: 0,
+      refillIntervalUnit: "month",
+      refillIntervalValue: 1,
+      __v: 0,
+    };
+
+    await db.collection("balances").insertOne(initialBalance);
+
+    console.log(`✅ Nouvel utilisateur créé: ${email} (${role})`);
+
+    return NextResponse.json({
+      success: true,
+      message: `Utilisateur ${name} créé avec succès`,
+      user: {
+        id: result.insertedId,
+        name,
+        email,
+        role,
+        createdAt: newUser.createdAt,
+      },
+    });
+  } catch (error) {
+    console.error("Erreur lors de la création de l'utilisateur:", error);
+    return NextResponse.json(
+      { error: "Erreur serveur lors de la création de l'utilisateur" },
+      { status: 500 }
+    );
+  }
+}

app/api/debug-users/route.ts

@@ -0,0 +1,32 @@
+import { NextResponse } from "next/server";
+import { getDatabase } from "@/lib/db/mongodb";
+
+export async function GET() {
+  try {
+    const db = await getDatabase();
+
+    // Récupérer 5 users pour debug
+    const users = await db.collection("users")
+      .find({ referent: { $exists: true } })
+      .limit(5)
+      .toArray();
+
+    return NextResponse.json({
+      success: true,
+      count: users.length,
+      users: users.map(u => ({
+        _id: u._id,
+        name: u.name,
+        email: u.email,
+        referent: u.referent,
+        cours: u.cours,
+      })),
+    });
+  } catch (error) {
+    console.error("Debug error:", error);
+    return NextResponse.json(
+      { error: error instanceof Error ? error.message : "Unknown error" },
+      { status: 500 }
+    );
+  }
+}

app/api/delete-user/route.ts

@@ -0,0 +1,160 @@
+import { NextRequest, NextResponse } from "next/server";
+import { getDatabase } from "@/lib/db/mongodb";
+import { ObjectId } from "mongodb";
+
+interface QueryFilter {
+  _id?: ObjectId;
+  email?: string;
+}
+
+export async function DELETE(request: NextRequest) {
+  try {
+    const { searchParams } = new URL(request.url);
+    const userId = searchParams.get("id");
+    const email = searchParams.get("email");
+
+    if (!userId && !email) {
+      return NextResponse.json(
+        { error: "ID utilisateur ou email requis" },
+        { status: 400 }
+      );
+    }
+
+    const db = await getDatabase();
+    const usersCollection = db.collection("users");
+    const balancesCollection = db.collection("balances");
+
+    // Construire la requête de recherche
+    const query: QueryFilter = {};
+    if (userId) {
+      // Vérifier si l'ID est un ObjectId valide
+      if (!ObjectId.isValid(userId)) {
+        return NextResponse.json(
+          { error: "ID utilisateur invalide" },
+          { status: 400 }
+        );
+      }
+      query._id = new ObjectId(userId);
+    } else if (email) {
+      query.email = email.toLowerCase();
+    }
+
+    // Vérifier si l'utilisateur existe
+    const existingUser = await usersCollection.findOne(query);
+    if (!existingUser) {
+      return NextResponse.json(
+        { error: "Utilisateur non trouvé" },
+        { status: 404 }
+      );
+    }
+
+    // Supprimer l'utilisateur
+    const deleteUserResult = await usersCollection.deleteOne(query);
+    
+    // Supprimer le solde associé
+    const deleteBalanceResult = await balancesCollection.deleteOne({
+      user: existingUser._id
+    });
+
+    if (deleteUserResult.deletedCount === 0) {
+      return NextResponse.json(
+        { error: "Erreur lors de la suppression de l'utilisateur" },
+        { status: 500 }
+      );
+    }
+
+    return NextResponse.json({
+      success: true,
+      message: "Utilisateur supprimé avec succès",
+      deletedUser: {
+        id: existingUser._id.toString(),
+        name: existingUser.name,
+        email: existingUser.email,
+        role: existingUser.role
+      },
+      balanceDeleted: deleteBalanceResult.deletedCount > 0
+    });
+
+  } catch (error) {
+    console.error("Erreur lors de la suppression de l'utilisateur:", error);
+    return NextResponse.json(
+      { error: "Erreur interne du serveur" },
+      { status: 500 }
+    );
+  }
+}
+
+export async function POST(request: NextRequest) {
+  try {
+    const { userId, email } = await request.json();
+
+    if (!userId && !email) {
+      return NextResponse.json(
+        { error: "ID utilisateur ou email requis" },
+        { status: 400 }
+      );
+    }
+
+    const db = await getDatabase();
+    const usersCollection = db.collection("users");
+    const balancesCollection = db.collection("balances");
+
+    // Construire la requête de recherche
+    const query: QueryFilter = {};
+    if (userId) {
+      // Vérifier si l'ID est un ObjectId valide
+      if (!ObjectId.isValid(userId)) {
+        return NextResponse.json(
+          { error: "ID utilisateur invalide" },
+          { status: 400 }
+        );
+      }
+      query._id = new ObjectId(userId);
+    } else if (email) {
+      query.email = email.toLowerCase();
+    }
+
+    // Vérifier si l'utilisateur existe
+    const existingUser = await usersCollection.findOne(query);
+    if (!existingUser) {
+      return NextResponse.json(
+        { error: "Utilisateur non trouvé" },
+        { status: 404 }
+      );
+    }
+
+    // Supprimer l'utilisateur
+    const deleteUserResult = await usersCollection.deleteOne(query);
+    
+    // Supprimer le solde associé
+    const deleteBalanceResult = await balancesCollection.deleteOne({
+      user: existingUser._id
+    });
+
+    if (deleteUserResult.deletedCount === 0) {
+      return NextResponse.json(
+        { error: "Erreur lors de la suppression de l'utilisateur" },
+        { status: 500 }
+      );
+    }
+
+    return NextResponse.json({
+      success: true,
+      message: "Utilisateur supprimé avec succès",
+      deletedUser: {
+        id: existingUser._id.toString(),
+        name: existingUser.name,
+        email: existingUser.email,
+        role: existingUser.role
+      },
+      balanceDeleted: deleteBalanceResult.deletedCount > 0
+    });
+
+  } catch (error) {
+    console.error("Erreur lors de la suppression de l'utilisateur:", error);
+    return NextResponse.json(
+      { error: "Erreur interne du serveur" },
+      { status: 500 }
+    );
+  }
+}

app/api/metrics/route.ts

@@ -13,21 +13,21 @@ export async function GET() {
       db.collection("balances").find({}).toArray(),
     ]);
 
-    // Calculer les utilisateurs actifs (dernière semaine)
-    const oneWeekAgo = new Date();
-    oneWeekAgo.setDate(oneWeekAgo.getDate() - 7);
+    // Calculer les utilisateurs actifs (30 derniers jours)
+    const thirtyDaysAgo = new Date();
+    thirtyDaysAgo.setDate(thirtyDaysAgo.getDate() - 30);
     const activeUsers = users.filter((user) => {
       const lastActivity = new Date(user.updatedAt || user.createdAt);
-      return lastActivity >= oneWeekAgo;
+      return lastActivity >= thirtyDaysAgo;
     }).length;
 
     // Calculer les administrateurs
     const totalAdmins = users.filter(user => user.role === 'ADMIN').length;
 
-    // Calculer les conversations actives (dernière semaine)
+    // Calculer les conversations actives (30 derniers jours)
     const activeConversations = conversations.filter((conv) => {
       const lastActivity = new Date(conv.updatedAt || conv.createdAt);
-      return lastActivity >= oneWeekAgo;
+      return lastActivity >= thirtyDaysAgo;
     }).length;
 
     // Calculer le total des messages
@@ -41,32 +41,27 @@ export async function GET() {
       return sum + Math.abs(Number(transaction.rawAmount) || 0);
     }, 0);
 
-    // Calculer le total des crédits depuis balances
-    const totalCredits = balances.reduce((sum, balance) => {
-      return sum + (Number(balance.tokenCredits) || 0);
-    }, 0);
+    // Calculer le total des crédits
+    const totalCreditsUsed = balances.reduce(
+      (sum, balance) => sum + (balance.tokenCredits || 0),
+      0
+    );
 
     // Récupérer les transactions récentes (dernières 10)
     const recentTransactions = transactions
       .sort((a, b) => new Date(b.createdAt).getTime() - new Date(a.createdAt).getTime())
-      .slice(0, 10)
-      .map(transaction => ({
-        _id: transaction._id,
-        description: `Transaction ${transaction.tokenType} - ${transaction.model}`,
-        amount: transaction.rawAmount,
-        type: transaction.rawAmount > 0 ? 'credit' : 'debit',
-        createdAt: transaction.createdAt
-      }));
+      .slice(0, 10);
 
     return NextResponse.json({
       totalUsers: users.length,
       activeUsers,
       totalAdmins,
-      totalCredits,
+      totalCredits: totalCreditsUsed,
       activeConversations,
-      totalMessages: totalMessages,
+      totalMessages,
       totalTokensConsumed,
-      recentTransactions
+      totalCreditsUsed,
+      recentTransactions,
     });
   } catch (error) {
     console.error("Erreur lors du calcul des métriques:", error);

app/api/stats/route.ts

@@ -8,6 +8,28 @@ export async function GET() {
     // Récupérer toutes les transactions
     const transactions = await db.collection("transactions").find({}).toArray();
     
+    // Récupérer les conversations pour analyser les connexions utilisateurs
+    const conversations = await db.collection("conversations").find({}).toArray();
+    
+    // Récupérer les messages pour une analyse plus précise de l'activité
+    const messages = await db.collection("messages").find({}).toArray();
+    
+    console.log(`Total transactions trouvées: ${transactions.length}`);
+    
+    // Vérifier les champs de date disponibles dans les transactions
+    if (transactions.length > 0) {
+      const sampleTransaction = transactions[0];
+      console.log("Exemple de transaction:", {
+        _id: sampleTransaction._id,
+        createdAt: sampleTransaction.createdAt,
+        updatedAt: sampleTransaction.updatedAt,
+        date: sampleTransaction.date,
+        timestamp: sampleTransaction.timestamp,
+        rawAmount: sampleTransaction.rawAmount,
+        model: sampleTransaction.model
+      });
+    }
+
     // Calculer les tokens par jour (7 derniers jours)
     const dailyStats = [];
     const today = new Date();
@@ -22,14 +44,44 @@ export async function GET() {
       nextDate.setDate(nextDate.getDate() + 1);
       
       const dayTransactions = transactions.filter(transaction => {
-        const transactionDate = new Date(transaction.createdAt);
+        // Essayer différents champs de date
+        let transactionDate = null;
+        
+        if (transaction.createdAt) {
+          transactionDate = new Date(transaction.createdAt);
+        } else if (transaction.updatedAt) {
+          transactionDate = new Date(transaction.updatedAt);
+        } else if (transaction.date) {
+          transactionDate = new Date(transaction.date);
+        } else if (transaction.timestamp) {
+          transactionDate = new Date(transaction.timestamp);
+        } else if (transaction._id && transaction._id.getTimestamp) {
+          // Utiliser le timestamp de l'ObjectId MongoDB
+          transactionDate = transaction._id.getTimestamp();
+        }
+        
+        if (!transactionDate || isNaN(transactionDate.getTime())) {
+          return false;
+        }
+        
         return transactionDate >= date && transactionDate < nextDate;
       });
       
       const totalTokens = dayTransactions.reduce((sum, transaction) => {
-        return sum + Math.abs(Number(transaction.rawAmount) || 0);
+        // Essayer différents champs pour les tokens
+        let tokens = 0;
+        if (transaction.rawAmount) {
+          tokens = Math.abs(Number(transaction.rawAmount) || 0);
+        } else if (transaction.amount) {
+          tokens = Math.abs(Number(transaction.amount) || 0);
+        } else if (transaction.tokens) {
+          tokens = Math.abs(Number(transaction.tokens) || 0);
+        }
+        return sum + tokens;
       }, 0);
       
+      console.log(`${dayNames[date.getDay()]} (${date.toISOString().split('T')[0]}): ${dayTransactions.length} transactions, ${totalTokens} tokens`);
+      
       dailyStats.push({
         name: dayNames[date.getDay()],
         value: totalTokens
@@ -40,9 +92,19 @@ export async function GET() {
     const modelStats = new Map<string, number>();
     
     transactions.forEach(transaction => {
-      const model = transaction.model || "Inconnu";
-      const tokens = Math.abs(Number(transaction.rawAmount) || 0);
+      const model = transaction.model || transaction.modelName || "Inconnu";
+      let tokens = 0;
+      if (transaction.rawAmount) {
+        tokens = Math.abs(Number(transaction.rawAmount) || 0);
+      } else if (transaction.amount) {
+        tokens = Math.abs(Number(transaction.amount) || 0);
+      } else if (transaction.tokens) {
+        tokens = Math.abs(Number(transaction.tokens) || 0);
+      }
+      
+      if (tokens > 0) {
         modelStats.set(model, (modelStats.get(model) || 0) + tokens);
+      }
     });
 
     // Convertir en array et trier par usage
@@ -50,8 +112,75 @@ export async function GET() {
       .map(([name, value]) => ({ name, value }))
       .sort((a, b) => b.value - a.value);
 
+    // Calculer les connexions utilisateurs par jour (7 derniers jours)
+    const dailyConnections = [];
+    
+    for (let i = 6; i >= 0; i--) {
+      const date = new Date(today);
+      date.setDate(date.getDate() - i);
+      date.setHours(0, 0, 0, 0);
+      
+      const nextDate = new Date(date);
+      nextDate.setDate(nextDate.getDate() + 1);
+      
+      // Analyser l'activité des utilisateurs via les messages
+      const activeUsers = new Set();
+      
+      messages.forEach(message => {
+        let messageDate = null;
+        
+        if (message.createdAt) {
+          messageDate = new Date(message.createdAt);
+        } else if (message.updatedAt) {
+          messageDate = new Date(message.updatedAt);
+        } else if (message._id && message._id.getTimestamp) {
+          messageDate = message._id.getTimestamp();
+        }
+        
+        if (messageDate && messageDate >= date && messageDate < nextDate) {
+          if (message.user && message.isCreatedByUser) {
+            activeUsers.add(message.user);
+          }
+        }
+      });
+      
+      // Aussi analyser via les conversations créées ce jour-là
+      conversations.forEach(conversation => {
+        let convDate = null;
+        
+        if (conversation.createdAt) {
+          convDate = new Date(conversation.createdAt);
+        } else if (conversation.updatedAt) {
+          convDate = new Date(conversation.updatedAt);
+        } else if (conversation._id && conversation._id.getTimestamp) {
+          convDate = conversation._id.getTimestamp();
+        }
+        
+        if (convDate && convDate >= date && convDate < nextDate) {
+          if (conversation.user) {
+            activeUsers.add(conversation.user);
+          }
+        }
+      });
+      
+      console.log(`${dayNames[date.getDay()]} (${date.toISOString().split('T')[0]}): ${activeUsers.size} utilisateurs actifs`);
+      
+      dailyConnections.push({
+        name: dayNames[date.getDay()],
+        value: activeUsers.size
+      });
+    }
+
+    console.log("Statistiques calculées:", {
+      dailyStats,
+      dailyConnections,
+      totalModels: modelData.length,
+      topModel: modelData[0]
+    });
+
     return NextResponse.json({
       dailyTokens: dailyStats,
+      dailyConnections: dailyConnections,
       modelDistribution: modelData
     });
   } catch (error) {

app/api/user-activity/route.ts

@@ -8,16 +8,16 @@ export async function GET() {
     // Récupérer tous les utilisateurs
     const users = await db.collection("users").find({}).toArray();
 
-    // Calculer les utilisateurs actifs (dernière semaine)
-    const oneWeekAgo = new Date();
-    oneWeekAgo.setDate(oneWeekAgo.getDate() - 7);
+    // Calculer les utilisateurs actifs (30 derniers jours)
+    const thirtyDaysAgo = new Date();
+    thirtyDaysAgo.setDate(thirtyDaysAgo.getDate() - 30);
 
     let activeUsers = 0;
     let inactiveUsers = 0;
 
     users.forEach(user => {
       const lastActivity = new Date(user.updatedAt || user.createdAt);
-      if (lastActivity >= oneWeekAgo) {
+      if (lastActivity >= thirtyDaysAgo) {
         activeUsers++;
       } else {
         inactiveUsers++;

app/conversations/page.tsx

@@ -6,7 +6,7 @@ export default function ConversationsPage() {
       <div>
         <h1 className="text-3xl font-bold tracking-tight">Conversations</h1>
         <p className="text-muted-foreground">
-          Gestion des conversations Cercle GPTTT
+          Gestion des conversations Cercle GPT
         </p>
       </div>
 

app/globals.css

@@ -51,51 +51,53 @@
   --card-foreground: oklch(0.145 0 0);
   --popover: oklch(1 0 0);
   --popover-foreground: oklch(0.145 0 0);
-  --primary: oklch(0.205 0 0);
+  --primary: oklch(0.145 0 0);
   --primary-foreground: oklch(0.985 0 0);
-  --secondary: oklch(0.97 0 0);
-  --secondary-foreground: oklch(0.205 0 0);
-  --muted: oklch(0.97 0 0);
+  --secondary: oklch(0.969 0 0);
+  --secondary-foreground: oklch(0.145 0 0);
+  --muted: oklch(0.969 0 0);
   --muted-foreground: oklch(0.556 0 0);
-  --accent: oklch(0.97 0 0);
-  --accent-foreground: oklch(0.205 0 0);
-  --destructive: oklch(0.577 0.245 27.325);
-  --border: oklch(0.922 0 0);
-  --input: oklch(0.922 0 0);
-  --ring: oklch(0.708 0 0);
-  --chart-1: oklch(0.646 0.222 41.116);
-  --chart-2: oklch(0.6 0.118 184.704);
-  --chart-3: oklch(0.398 0.07 227.392);
-  --chart-4: oklch(0.828 0.189 84.429);
-  --chart-5: oklch(0.769 0.188 70.08);
-  --sidebar: oklch(0.985 0 0);
-  --sidebar-foreground: oklch(0.145 0 0);
-  --sidebar-primary: oklch(0.205 0 0);
+  --accent: oklch(0.969 0 0);
+  --accent-foreground: oklch(0.145 0 0);
+  --destructive: oklch(0.627 0.265 303.9);
+  --destructive-foreground: oklch(0.985 0 0);
+  --border: oklch(0.898 0 0);
+  --input: oklch(0.898 0 0);
+  --ring: oklch(0.145 0 0);
+  --chart-1: oklch(0.488 0.243 264.376);
+  --chart-2: oklch(0.696 0.17 162.48);
+  --chart-3: oklch(0.769 0.188 70.08);
+  --chart-4: oklch(0.627 0.265 303.9);
+  --chart-5: oklch(0.645 0.246 16.439);
+  --sidebar: oklch(0.205 0 0);
+  --sidebar-foreground: oklch(0.985 0 0);
+  --sidebar-primary: oklch(0.488 0.243 264.376);
   --sidebar-primary-foreground: oklch(0.985 0 0);
-  --sidebar-accent: oklch(0.97 0 0);
-  --sidebar-accent-foreground: oklch(0.205 0 0);
-  --sidebar-border: oklch(0.922 0 0);
-  --sidebar-ring: oklch(0.708 0 0);
+  --sidebar-accent: oklch(0.269 0 0);
+  --sidebar-accent-foreground: oklch(0.985 0 0);
+  --sidebar-border: oklch(1 0 0 / 10%);
+  --sidebar-ring: oklch(0.556 0 0);
 }
 
 .dark {
   --background: oklch(0.145 0 0);
   --foreground: oklch(0.985 0 0);
-  --card: oklch(0.205 0 0);
+  --card: oklch(0.145 0 0);
   --card-foreground: oklch(0.985 0 0);
-  --popover: oklch(0.205 0 0);
+  --popover: oklch(0.145 0 0);
   --popover-foreground: oklch(0.985 0 0);
-  --primary: oklch(0.922 0 0);
-  --primary-foreground: oklch(0.205 0 0);
-  --secondary: oklch(0.269 0 0);
+  --primary: oklch(0.985 0 0);
+  --primary-foreground: oklch(0.145 0 0);
+  --secondary: oklch(0.205 0 0);
   --secondary-foreground: oklch(0.985 0 0);
-  --muted: oklch(0.269 0 0);
-  --muted-foreground: oklch(0.708 0 0);
-  --accent: oklch(0.269 0 0);
+  --muted: oklch(0.205 0 0);
+  --muted-foreground: oklch(0.556 0 0);
+  --accent: oklch(0.205 0 0);
   --accent-foreground: oklch(0.985 0 0);
-  --destructive: oklch(0.704 0.191 22.216);
-  --border: oklch(1 0 0 / 10%);
-  --input: oklch(1 0 0 / 15%);
+  --destructive: oklch(0.627 0.265 303.9);
+  --destructive-foreground: oklch(0.985 0 0);
+  --border: oklch(0.205 0 0);
+  --input: oklch(0.205 0 0);
   --ring: oklch(0.556 0 0);
   --chart-1: oklch(0.488 0.243 264.376);
   --chart-2: oklch(0.696 0.17 162.48);
@@ -120,3 +122,31 @@
     @apply bg-background text-foreground;
   }
 }
+
+@layer utilities {
+  @keyframes accordion-down {
+    from {
+      height: 0;
+    }
+    to {
+      height: var(--radix-accordion-content-height);
+    }
+  }
+
+  @keyframes accordion-up {
+    from {
+      height: var(--radix-accordion-content-height);
+    }
+    to {
+      height: 0;
+    }
+  }
+
+  .animate-accordion-down {
+    animation: accordion-down 0.2s ease-out;
+  }
+
+  .animate-accordion-up {
+    animation: accordion-up 0.2s ease-out;
+  }
+}

app/layout.tsx

@@ -2,6 +2,7 @@ import type { Metadata } from "next";
 import { Geist, Geist_Mono } from "next/font/google";
 import "./globals.css";
 import { Sidebar } from "@/components/layout/sidebar";
+import { QueryProvider } from "@/components/providers/query-provider";
 
 const geistSans = Geist({
   variable: "--font-geist-sans",
@@ -28,12 +29,14 @@ export default function RootLayout({
       <body
         className={`${geistSans.variable} ${geistMono.variable} antialiased`}
       >
+        <QueryProvider>
           <div className="flex h-screen">
             <Sidebar />
             <main className="flex-1 overflow-auto">
               <div className="container mx-auto p-6">{children}</div>
             </main>
           </div>
+        </QueryProvider>
       </body>
     </html>
   );

app/login/page.tsx

@@ -0,0 +1,194 @@
+"use client";
+
+import { useState } from "react";
+import { createClient } from "@/lib/supabase/client";
+import { useRouter } from "next/navigation";
+import Image from "next/image";
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { Alert, AlertDescription } from "@/components/ui/alert";
+import { Loader2, Mail, Lock, Shield } from "lucide-react";
+
+export default function LoginPage() {
+  const [email, setEmail] = useState("");
+  const [password, setPassword] = useState("");
+  const [loading, setLoading] = useState(false);
+  const [error, setError] = useState("");
+  const router = useRouter();
+
+  // Fonction pour traduire les erreurs Supabase en français
+  const getErrorMessage = (error: string) => {
+    const errorMessages: { [key: string]: string } = {
+      "Invalid login credentials": "Identifiants de connexion invalides",
+      "Email not confirmed": "Email non confirmé",
+      "Too many requests": "Trop de tentatives de connexion",
+      "User not found": "Utilisateur non trouvé",
+      "Invalid email": "Adresse email invalide",
+      "Password should be at least 6 characters": "Le mot de passe doit contenir au moins 6 caractères",
+      "Email rate limit exceeded": "Limite de tentatives dépassée",
+      "Invalid email or password": "Email ou mot de passe incorrect",
+      "Account not found": "Compte non trouvé",
+      "Invalid credentials": "Identifiants incorrects",
+      "Authentication failed": "Échec de l'authentification",
+      "Access denied": "Accès refusé",
+      "Unauthorized": "Non autorisé",
+    };
+
+    // Chercher une correspondance exacte
+    if (errorMessages[error]) {
+      return errorMessages[error];
+    }
+
+    // Chercher une correspondance partielle
+    for (const [englishError, frenchError] of Object.entries(errorMessages)) {
+      if (error.toLowerCase().includes(englishError.toLowerCase())) {
+        return frenchError;
+      }
+    }
+
+    // Message par défaut si aucune correspondance
+    return "Erreur de connexion. Vérifiez vos identifiants.";
+  };
+
+  const handleLogin = async (e: React.FormEvent) => {
+    e.preventDefault();
+    setLoading(true);
+    setError("");
+
+    // Validation côté client
+    if (!email || !password) {
+      setError("Veuillez remplir tous les champs");
+      setLoading(false);
+      return;
+    }
+
+    if (!email.includes("@")) {
+      setError("Veuillez entrer une adresse email valide");
+      setLoading(false);
+      return;
+    }
+
+    const supabase = createClient();
+
+    try {
+      const { data, error: authError } = await supabase.auth.signInWithPassword({
+        email,
+        password,
+      });
+
+      if (authError) {
+        setError(getErrorMessage(authError.message));
+        return;
+      }
+
+      if (data.user) {
+        router.push("/");
+        router.refresh();
+      }
+    } catch (error) {
+      console.error('Login error:', error);
+      setError("Une erreur inattendue est survenue. Veuillez réessayer.");
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  return (
+    <div className="min-h-screen bg-gray-50 flex items-center justify-center p-4">
+      <Card className="w-full max-w-md shadow-lg border border-gray-200">
+        <CardHeader className="space-y-6 pb-8">
+          <div className="flex justify-center">
+            <div className="relative w-16 h-16 rounded-full bg-gray-100 p-2">
+              <Image
+                src="/img/logo.png"
+                alt="Logo"
+                width={48}
+                height={48}
+                className="rounded-full"
+              />
+            </div>
+          </div>
+          <div className="text-center space-y-2">
+            <CardTitle className="text-2xl font-bold text-gray-900 flex items-center justify-center gap-2">
+              <Shield className="w-6 h-6 text-gray-700" />
+              Admin Dashboard
+            </CardTitle>
+            <p className="text-gray-600 text-sm">
+              Connectez-vous pour accéder au tableau de bord
+            </p>
+          </div>
+        </CardHeader>
+        
+        <CardContent className="space-y-6">
+          {error && (
+            <Alert className="border-red-200 bg-red-50">
+              <AlertDescription className="text-red-700">
+                {error}
+              </AlertDescription>
+            </Alert>
+          )}
+          
+          <form onSubmit={handleLogin} className="space-y-4">
+            <div className="space-y-2">
+              <label htmlFor="email" className="text-sm font-medium text-gray-700">
+                Email
+              </label>
+              <div className="relative">
+                <Mail className="absolute left-3 top-1/2 transform -translate-y-1/2 text-gray-400 w-4 h-4" />
+                <Input
+                  id="email"
+                  type="email"
+                  placeholder="admin@example.com"
+                  value={email}
+                  onChange={(e) => setEmail(e.target.value)}
+                  className="pl-10 border-gray-300 focus:border-gray-900 focus:ring-gray-900"
+                  required
+                />
+              </div>
+            </div>
+            
+            <div className="space-y-2">
+              <label htmlFor="password" className="text-sm font-medium text-gray-700">
+                Mot de passe
+              </label>
+              <div className="relative">
+                <Lock className="absolute left-3 top-1/2 transform -translate-y-1/2 text-gray-400 w-4 h-4" />
+                <Input
+                  id="password"
+                  type="password"
+                  placeholder="••••••••"
+                  value={password}
+                  onChange={(e) => setPassword(e.target.value)}
+                  className="pl-10 border-gray-300 focus:border-gray-900 focus:ring-gray-900"
+                  required
+                />
+              </div>
+            </div>
+            
+            <Button
+              type="submit"
+              className="w-full bg-gray-900 hover:bg-gray-800 text-white font-medium py-2.5 transition-colors"
+              disabled={loading}
+            >
+              {loading ? (
+                <>
+                  <Loader2 className="mr-2 h-4 w-4 animate-spin" />
+                  Connexion en cours...
+                </>
+              ) : (
+                "Se connecter"
+              )}
+            </Button>
+          </form>
+          
+          <div className="text-center">
+            <p className="text-xs text-gray-500">
+              Accès réservé aux administrateurs autorisés
+            </p>
+          </div>
+        </CardContent>
+      </Card>
+    </div>
+  );
+}

app/page.tsx

@@ -5,6 +5,7 @@ import { Button } from "@/components/ui/button";
 import { OverviewMetrics } from "@/components/dashboard/overview-metrics";
 import { RealTimeStats } from "@/components/dashboard/real-time-stats";
 import { RealUserActivityChart } from "@/components/dashboard/charts/real-user-activity-chart";
+import { DashboardUsersList } from "@/components/dashboard/dashboard-users-list";
 import {
   Users,
   MessageSquare,
@@ -28,7 +29,7 @@ export default function Dashboard() {
         </p>
       </div>
 
-      {/* Métriques principales */}
+      {/* Métriques principales - maintenant avec tokens consommés */}
       <Suspense
         fallback={<div className="h-32 bg-muted animate-pulse rounded-lg" />}
       >
@@ -49,10 +50,9 @@ export default function Dashboard() {
         </Suspense>
       </div>
 
-      {/* Grille pour activité utilisateurs et actions */}
-      <div className="grid gap-6 md:grid-cols-3">
-        {/* Activité des utilisateurs avec vraies données */}
-        <div className="md:col-span-1">
+      {/* Grille pour activité utilisateurs et top utilisateurs */}
+      <div className="grid gap-6 md:grid-cols-2">
+        {/* Activité des utilisateurs */}
         <Suspense
           fallback={
             <div className="h-64 bg-muted animate-pulse rounded-lg" />
@@ -60,10 +60,19 @@ export default function Dashboard() {
         >
           <RealUserActivityChart />
         </Suspense>
+
+        {/* Top 5 utilisateurs - nouveau composant */}
+        <Suspense
+          fallback={
+            <div className="h-64 bg-muted animate-pulse rounded-lg" />
+          }
+        >
+          <DashboardUsersList />
+        </Suspense>
       </div>
 
-        {/* Actions rapides épurées */}
-        <div className="md:col-span-2 grid gap-4 md:grid-cols-2">
+      {/* Actions rapides */}
+      <div className="grid gap-4 md:grid-cols-2 lg:grid-cols-4">
           <Card className="hover:shadow-md transition-shadow border-l-4 border-l-blue-500">
             <CardHeader className="pb-3">
               <CardTitle className="text-base flex items-center">
@@ -141,6 +150,5 @@ export default function Dashboard() {
           </Card>
       </div>
     </div>
-    </div>
   );
 }

app/referents/[referent]/[cours]/page.tsx

@@ -0,0 +1,194 @@
+"use client";
+
+import { useState, useEffect, useMemo } from "react";
+import { useParams, useRouter } from "next/navigation";
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { Button } from "@/components/ui/button";
+import { Badge } from "@/components/ui/badge";
+import {
+  Table,
+  TableBody,
+  TableCell,
+  TableHead,
+  TableHeader,
+  TableRow,
+} from "@/components/ui/table";
+import { ArrowLeft, Mail } from "lucide-react";
+import { formatDate } from "@/lib/utils";
+import { LibreChatUser, LibreChatBalance } from "@/lib/types";
+import { useCollection } from "@/hooks/useCollection";
+
+// Couleurs prédéfinies pour les référents
+const REFERENT_COLORS: Record<string, string> = {
+  "Emmanuel WATHELE": "#3B82F6",
+  "IHECS": "#10B981",
+};
+
+export default function CoursDetailPage() {
+  const params = useParams();
+  const router = useRouter();
+  const referent = decodeURIComponent(params.referent as string);
+  const cours = decodeURIComponent(params.cours as string);
+
+  const [students, setStudents] = useState<LibreChatUser[]>([]);
+  const [loading, setLoading] = useState(true);
+
+  // Charger tous les balances
+  const { data: balances = [] } = useCollection<LibreChatBalance>("balances", {
+    limit: 1000,
+  });
+
+  // Créer une map des crédits par utilisateur
+  const creditsMap = useMemo(() => {
+    const map = new Map<string, number>();
+    balances.forEach((balance) => {
+      map.set(balance.user, balance.tokenCredits || 0);
+    });
+    return map;
+  }, [balances]);
+
+  useEffect(() => {
+    const fetchStudents = async () => {
+      try {
+        const response = await fetch(
+          "/api/collections/users?page=1&limit=1000&filter={}"
+        );
+        const result = await response.json();
+
+        if (result.data) {
+          // Filtrer les étudiants pour ce référent et ce cours
+          const filtered = result.data.filter(
+            (user: { referent?: string; cours?: string }) =>
+              user.referent === referent && user.cours === cours
+          );
+          setStudents(filtered);
+        }
+      } catch (error) {
+        console.error("Erreur lors du chargement des étudiants:", error);
+      } finally {
+        setLoading(false);
+      }
+    };
+
+    fetchStudents();
+  }, [referent, cours]);
+
+  const couleur = REFERENT_COLORS[referent] || "#6B7280";
+
+  if (loading) {
+    return (
+      <div className="space-y-6">
+        <Button
+          variant="ghost"
+          onClick={() => router.push("/referents")}
+          className="mb-4"
+        >
+          <ArrowLeft className="h-4 w-4 mr-2" />
+          Retour aux référents
+        </Button>
+        <Card>
+          <CardContent className="p-6">
+            <div className="space-y-4">
+              {Array.from({ length: 5 }).map((_, i) => (
+                <div key={i} className="h-16 bg-muted animate-pulse rounded" />
+              ))}
+            </div>
+          </CardContent>
+        </Card>
+      </div>
+    );
+  }
+
+  return (
+    <div className="space-y-6">
+      <Button
+        variant="ghost"
+        onClick={() => router.push("/referents")}
+        className="mb-4"
+      >
+        <ArrowLeft className="h-4 w-4 mr-2" />
+        Retour aux référents
+      </Button>
+
+      <div className="flex items-center gap-3">
+        <div
+          className="w-6 h-6 rounded-full flex-shrink-0"
+          style={{ backgroundColor: couleur }}
+        />
+        <div>
+          <h1 className="text-3xl font-bold tracking-tight">{referent}</h1>
+          <p className="text-muted-foreground">{cours}</p>
+        </div>
+      </div>
+
+      <Card>
+        <CardHeader>
+          <div className="flex items-center justify-between">
+            <CardTitle>
+              Étudiants ({students.length})
+            </CardTitle>
+          </div>
+        </CardHeader>
+        <CardContent>
+          {students.length === 0 ? (
+            <div className="text-center py-12">
+              <p className="text-sm text-gray-500">
+                Aucun étudiant dans ce cours
+              </p>
+            </div>
+          ) : (
+            <div className="rounded-md border">
+              <Table>
+                <TableHeader>
+                  <TableRow>
+                    <TableHead>Nom</TableHead>
+                    <TableHead>Email</TableHead>
+                    <TableHead>Rôle</TableHead>
+                    <TableHead>Crédits</TableHead>
+                    <TableHead>Créé le</TableHead>
+                  </TableRow>
+                </TableHeader>
+                <TableBody>
+                  {students.map((student) => (
+                    <TableRow key={student._id}>
+                      <TableCell>
+                        <div className="flex items-center gap-2">
+                          <div
+                            className="w-2 h-2 rounded-full"
+                            style={{ backgroundColor: couleur }}
+                          />
+                          <span className="font-medium">
+                            {student.prenom} {student.nom}
+                          </span>
+                        </div>
+                      </TableCell>
+                      <TableCell>
+                        <div className="flex items-center gap-2">
+                          <Mail className="h-4 w-4 text-gray-400" />
+                          <span className="text-sm">{student.email}</span>
+                        </div>
+                      </TableCell>
+                      <TableCell>
+                        <Badge variant={student.role === "ADMIN" ? "default" : "secondary"}>
+                          {student.role}
+                        </Badge>
+                      </TableCell>
+                      <TableCell>
+                        <span className="text-sm">
+                          {(creditsMap.get(student._id) || 0).toLocaleString()} tokens
+                        </span>
+                      </TableCell>
+                      <TableCell className="text-sm text-gray-500">
+                        {formatDate(student.createdAt)}
+                      </TableCell>
+                    </TableRow>
+                  ))}
+                </TableBody>
+              </Table>
+            </div>
+          )}
+        </CardContent>
+      </Card>
+    </div>
+  );
+}

app/referents/page.tsx

@@ -0,0 +1,181 @@
+"use client";
+
+import { useState, useEffect } from "react";
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { GraduationCap, Users, ChevronRight } from "lucide-react";
+import Link from "next/link";
+
+// Couleurs prédéfinies pour les référents
+const REFERENT_COLORS: Record<string, string> = {
+  "Emmanuel WATHELE": "#3B82F6", // Bleu
+  "IHECS": "#10B981",            // Vert
+};
+
+interface ReferentData {
+  nom: string;
+  couleur: string;
+  cours: string[];
+  nombreEtudiants: number;
+}
+
+export default function ReferentsPage() {
+  const [referents, setReferents] = useState<ReferentData[]>([]);
+  const [loading, setLoading] = useState(true);
+
+  useEffect(() => {
+    const fetchReferents = async () => {
+      try {
+        // Récupérer tous les users pour compter par référent
+        const response = await fetch(
+          "/api/collections/users?page=1&limit=1000&filter={}"
+        );
+        const result = await response.json();
+
+        if (result.data) {
+          // Grouper par référent
+          const referentsMap = new Map<string, ReferentData>();
+
+          result.data.forEach((user: { referent?: string; cours?: string }) => {
+            if (user.referent) {
+              if (!referentsMap.has(user.referent)) {
+                referentsMap.set(user.referent, {
+                  nom: user.referent,
+                  couleur: REFERENT_COLORS[user.referent] || "#6B7280", // Gris par défaut
+                  cours: [],
+                  nombreEtudiants: 0,
+                });
+              }
+
+              const ref = referentsMap.get(user.referent)!;
+              ref.nombreEtudiants++;
+
+              // Ajouter le cours s'il n'existe pas déjà
+              if (user.cours && !ref.cours.includes(user.cours)) {
+                ref.cours.push(user.cours);
+              }
+            }
+          });
+
+          setReferents(Array.from(referentsMap.values()));
+        }
+      } catch (error) {
+        console.error("Erreur lors du chargement des référents:", error);
+      } finally {
+        setLoading(false);
+      }
+    };
+
+    fetchReferents();
+  }, []);
+
+  if (loading) {
+    return (
+      <div className="space-y-6">
+        <div>
+          <h1 className="text-3xl font-bold tracking-tight">Référents</h1>
+          <p className="text-muted-foreground">
+            Gestion des référents et leurs cours
+          </p>
+        </div>
+        <Card>
+          <CardContent className="p-6">
+            <div className="space-y-4">
+              {Array.from({ length: 3 }).map((_, i) => (
+                <div key={i} className="h-24 bg-muted animate-pulse rounded" />
+              ))}
+            </div>
+          </CardContent>
+        </Card>
+      </div>
+    );
+  }
+
+  if (referents.length === 0) {
+    return (
+      <div className="space-y-6">
+        <div>
+          <h1 className="text-3xl font-bold tracking-tight">Référents</h1>
+          <p className="text-muted-foreground">
+            Gestion des référents et leurs cours
+          </p>
+        </div>
+        <Card>
+          <CardContent className="p-6">
+            <div className="text-center py-12">
+              <GraduationCap className="mx-auto h-12 w-12 text-gray-400" />
+              <h3 className="mt-2 text-sm font-semibold text-gray-900">
+                Aucun référent
+              </h3>
+              <p className="mt-1 text-sm text-gray-500">
+                Importez des utilisateurs avec référents pour commencer.
+              </p>
+            </div>
+          </CardContent>
+        </Card>
+      </div>
+    );
+  }
+
+  return (
+    <div className="space-y-6">
+      <div>
+        <h1 className="text-3xl font-bold tracking-tight">Référents</h1>
+        <p className="text-muted-foreground">
+          Gestion des référents et leurs cours
+        </p>
+      </div>
+
+      <div className="grid gap-4">
+        {referents.map((referent) => (
+          <Card key={referent.nom} className="hover:shadow-md transition-shadow">
+            <CardHeader>
+              <div className="flex items-center justify-between">
+                <div className="flex items-center gap-3">
+                  {/* Point coloré */}
+                  <div
+                    className="w-4 h-4 rounded-full flex-shrink-0"
+                    style={{ backgroundColor: referent.couleur }}
+                  />
+                  <div>
+                    <CardTitle className="text-xl">{referent.nom}</CardTitle>
+                    <div className="flex items-center gap-2 mt-1">
+                      <Users className="h-4 w-4 text-gray-500" />
+                      <span className="text-sm text-gray-500">
+                        {referent.nombreEtudiants} étudiant
+                        {referent.nombreEtudiants > 1 ? "s" : ""}
+                      </span>
+                    </div>
+                  </div>
+                </div>
+              </div>
+            </CardHeader>
+            <CardContent>
+              <div className="space-y-3">
+                <h4 className="text-sm font-semibold text-gray-700">Cours :</h4>
+                <div className="space-y-2">
+                  {referent.cours.map((cours) => (
+                    <Link
+                      key={cours}
+                      href={`/referents/${encodeURIComponent(referent.nom)}/${encodeURIComponent(cours)}`}
+                    >
+                      <div className="flex items-center justify-between p-3 bg-gray-50 hover:bg-gray-100 rounded-lg transition-colors cursor-pointer">
+                        <div className="flex items-center gap-2">
+                          <div
+                            className="w-2 h-2 rounded-full"
+                            style={{ backgroundColor: referent.couleur }}
+                          />
+                          <span className="text-sm font-medium">{cours}</span>
+                        </div>
+                        <ChevronRight className="h-4 w-4 text-gray-400" />
+                      </div>
+                    </Link>
+                  ))}
+                </div>
+              </div>
+            </CardContent>
+          </Card>
+        ))}
+      </div>
+    </div>
+  );
+}

app/settings/page.tsx

@@ -1,5 +1,10 @@
 import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
 import { Badge } from "@/components/ui/badge";
+import { Database, Server, Settings } from "lucide-react";
+
+import AddCredits from "@/components/dashboard/add-credits";
+import AddCreditsSingleUser from "@/components/dashboard/add-credits-single-user";
+import UserManagement from "@/components/dashboard/user-management";
 
 export default function SettingsPage() {
   return (
@@ -7,65 +12,81 @@ export default function SettingsPage() {
       <div>
         <h1 className="text-3xl font-bold tracking-tight">Paramètres</h1>
         <p className="text-muted-foreground">
-          Configuration du dashboard Cercle GPT
+          Configuration et maintenance du système
         </p>
       </div>
 
+      {/* Informations système */}
       <div className="grid gap-6 md:grid-cols-2">
         <Card>
-          <CardHeader>
-            <CardTitle>Connexion MongoDB</CardTitle>
+          <CardHeader className="flex flex-row items-center justify-between space-y-0 pb-2">
+            <CardTitle className="text-sm font-medium flex items-center gap-2">
+              <Database className="h-4 w-4" />
+              Base de données
+            </CardTitle>
           </CardHeader>
           <CardContent>
             <div className="space-y-2">
               <div className="flex justify-between">
-                <span className="text-sm text-muted-foreground">Statut:</span>
+                <span className="text-sm text-muted-foreground">
+                  Statut MongoDB
+                </span>
                 <Badge variant="default">Connecté</Badge>
               </div>
-              <div className="flex justify-between">
-                <span className="text-sm text-muted-foreground">
-                  Base de données:
-                </span>
-                <span className="text-sm font-mono">Cercle GPT</span>
-              </div>
-              <div className="flex justify-between">
-                <span className="text-sm text-muted-foreground">
-                  Collections:
-                </span>
-                <span className="text-sm">29 collections</span>
-              </div>
             </div>
           </CardContent>
         </Card>
 
         <Card>
-          <CardHeader>
-            <CardTitle>Informations système</CardTitle>
+          <CardHeader className="flex flex-row items-center justify-between space-y-0 pb-2">
+            <CardTitle className="text-sm font-medium flex items-center gap-2">
+              <Server className="h-4 w-4" />
+              Informations système
+            </CardTitle>
           </CardHeader>
           <CardContent>
             <div className="space-y-2">
               <div className="flex justify-between">
                 <span className="text-sm text-muted-foreground">
-                  Version Next.js:
+                  Version Next.js
                 </span>
-                <span className="text-sm">15.5.4</span>
+                <Badge variant="outline">15.0.3</Badge>
               </div>
               <div className="flex justify-between">
                 <span className="text-sm text-muted-foreground">
-                  Version Node.js:
+                  Version Node.js
                 </span>
-                <span className="text-sm">{process.version}</span>
+                <Badge variant="outline">{process.version}</Badge>
               </div>
               <div className="flex justify-between">
                 <span className="text-sm text-muted-foreground">
-                  Environnement:
+                  Environnement
                 </span>
-                <Badge variant="outline">{process.env.NODE_ENV}</Badge>
+                <Badge variant="outline">Development</Badge>
               </div>
             </div>
           </CardContent>
         </Card>
       </div>
+
+      {/* Gestion des utilisateurs */}
+      <UserManagement />
+
+      {/* Gestion des crédits */}
+      <Card>
+        <CardHeader>
+          <CardTitle className="flex items-center gap-2">
+            <Settings className="h-6 w-6" />
+            Gestion des Crédits
+          </CardTitle>
+        </CardHeader>
+        <CardContent className="space-y-6">
+          <AddCreditsSingleUser />
+          <div className="border-t pt-6">
+            <AddCredits />
+          </div>
+        </CardContent>
+      </Card>
     </div>
   );
 }

app/users/page.tsx

@@ -6,7 +6,7 @@ export default function UsersPage() {
       <div>
         <h1 className="text-3xl font-bold tracking-tight">Utilisateurs</h1>
         <p className="text-muted-foreground">
-          Gestion des utilisateurs Cercle GPTT
+          Gestion des utilisateurs Cercle GPT
         </p>
       </div>
 

components/collections/conversations-table.tsx

@@ -1,27 +1,21 @@
 "use client";
 
-import { useState } from "react";
-import { useCollection } from "@/hooks/useCollection";
+import { useState, useMemo, useCallback, useRef, useEffect, Fragment } from "react";
+import { useQuery, keepPreviousData } from "@tanstack/react-query";
 import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
-import {
-  Table,
-  TableBody,
-  TableCell,
-  TableHead,
-  TableHeader,
-  TableRow,
-} from "@/components/ui/table";
 import { Button } from "@/components/ui/button";
 import { Badge } from "@/components/ui/badge";
+import { Input } from "@/components/ui/input";
 import {
   ChevronLeft,
   ChevronRight,
-  Users,
+  ChevronDown,
+  Search,
   MessageSquare,
-  Calendar,
   X,
   User,
   Bot,
+  Loader2,
 } from "lucide-react";
 import { formatDate } from "@/lib/utils";
 import {
@@ -30,496 +24,429 @@ import {
   LibreChatMessage,
 } from "@/lib/types";
 
+// Hook debounce personnalisé
+function useDebounce<T>(value: T, delay: number): T {
+  const [debouncedValue, setDebouncedValue] = useState<T>(value);
+
+  useEffect(() => {
+    const timer = setTimeout(() => setDebouncedValue(value), delay);
+    return () => clearTimeout(timer);
+  }, [value, delay]);
+
+  return debouncedValue;
+}
+
 // Types pour les messages étendus
 interface ExtendedMessage extends LibreChatMessage {
   content?: Array<{ type: string; text: string }> | string;
-  message?: Record<string, unknown>;
   parts?: Array<string | { text: string }>;
-  metadata?: { text?: string };
   [key: string]: unknown;
 }
 
+// Type pour les groupes d'utilisateurs
+interface UserGroup {
+  userId: string;
+  conversations: LibreChatConversation[];
+  totalMessages: number;
+}
+
+// Fetcher générique
+async function fetchCollection<T>(
+  collection: string,
+  params: Record<string, string | number>
+): Promise<{ data: T[]; total: number; totalPages: number }> {
+  const searchParams = new URLSearchParams();
+  Object.entries(params).forEach(([key, value]) => {
+    if (value !== undefined && value !== "") {
+      searchParams.set(key, String(value));
+    }
+  });
+
+  const url = `/api/collections/${collection}?${searchParams}`;
+  console.log("[fetchCollection]", collection, "URL:", url);
+
+  const response = await fetch(url);
+  if (!response.ok) throw new Error(`Erreur lors du chargement de ${collection}`);
+  const data = await response.json();
+  console.log("[fetchCollection]", collection, "Results:", data.data?.length, "items");
+  return data;
+}
+
 export function ConversationsTable() {
   const [page, setPage] = useState(1);
-  const [selectedConversationId, setSelectedConversationId] = useState<
-    string | null
-  >(null);
-  const [selectedUserId, setSelectedUserId] = useState<string | null>(null);
+  const [searchInput, setSearchInput] = useState("");
+  const [expandedUsers, setExpandedUsers] = useState<Set<string>>(new Set());
+  const [expandedConversation, setExpandedConversation] = useState<string | null>(null);
+  const searchInputRef = useRef<HTMLInputElement>(null);
 
-  const limit = 10;
+  const usersPerPage = 10; // Nombre de groupes d'utilisateurs par page
+  const debouncedSearch = useDebounce(searchInput, 250);
 
-  // Charger toutes les conversations pour le groupement côté client
+  // Reset page et expanded states quand la recherche change
+  useEffect(() => {
+    setPage(1);
+    setExpandedUsers(new Set());
+    setExpandedConversation(null);
+  }, [debouncedSearch]);
+
+  // Query conversations avec TanStack Query - limite élevée pour groupement client
   const {
-    data: conversations = [],
-    total = 0,
-    loading,
-  } = useCollection<LibreChatConversation>("conversations", {
-    limit: 1000,
-    page: 1, // Remplacer skip par page
+    data: conversationsData,
+    isLoading: conversationsLoading,
+    isFetching: conversationsFetching,
+  } = useQuery({
+    queryKey: ["conversations", debouncedSearch],
+    queryFn: () =>
+      fetchCollection<LibreChatConversation>("conversations", {
+        page: 1,
+        limit: 1000, // Charger beaucoup pour grouper côté client
+        search: debouncedSearch,
+      }),
+    placeholderData: keepPreviousData,
+    staleTime: 30000, // 30 secondes
   });
 
-  const { data: users = [] } = useCollection<LibreChatUser>("users", {
-    limit: 1000,
+  // Query users (cache long car ça change rarement)
+  const { data: usersData } = useQuery({
+    queryKey: ["users", "all"],
+    queryFn: () => fetchCollection<LibreChatUser>("users", { limit: 1000 }),
+    staleTime: 1000 * 60 * 5, // 5 minutes
   });
 
-  // Charger les messages seulement si une conversation est sélectionnée
-  const { data: messages = [] } = useCollection<LibreChatMessage>("messages", {
-    limit: 1000,
-    filter: selectedConversationId
-      ? { conversationId: selectedConversationId }
-      : {},
+  // Query messages de la conversation sélectionnée
+  const { data: messagesData, isLoading: messagesLoading } = useQuery({
+    queryKey: ["messages", expandedConversation],
+    queryFn: () =>
+      fetchCollection<LibreChatMessage>("messages", {
+        limit: 500,
+        filter: JSON.stringify({ conversationId: expandedConversation }),
+      }),
+    enabled: !!expandedConversation,
+    staleTime: 30000,
   });
 
-  const userMap = new Map(users.map((user) => [user._id, user]));
+  const conversations = conversationsData?.data ?? [];
+  const total = conversationsData?.total ?? 0;
+  const users = usersData?.data ?? [];
+  const messages = messagesData?.data ?? [];
 
-  const getUserDisplayName = (userId: string): string => {
-    if (userId === "unknown") return "Utilisateur inconnu";
-    const user = userMap.get(userId);
-    if (user) {
-      return (
-        user.name ||
-        user.username ||
-        user.email ||
-        `Utilisateur ${userId.slice(-8)}`
-      );
-    }
-    return `Utilisateur ${userId.slice(-8)}`;
-  };
-
-  const getUserEmail = (userId: string): string | null => {
-    if (userId === "unknown") return null;
-    const user = userMap.get(userId);
-    return user?.email || null;
-  };
-
-  // Fonction améliorée pour extraire le contenu du message
-  const getMessageContent = (message: LibreChatMessage): string => {
-    // Fonction helper pour nettoyer le texte
-    const cleanText = (text: string): string => {
-      return text.trim().replace(/\n\s*\n/g, "\n");
-    };
-
-    // 1. Vérifier le tableau content (structure LibreChat)
-    const messageObj = message as ExtendedMessage;
-    if (messageObj.content && Array.isArray(messageObj.content)) {
-      for (const contentItem of messageObj.content) {
-        if (
-          contentItem &&
-          typeof contentItem === "object" &&
-          contentItem.text
-        ) {
-          return cleanText(contentItem.text);
-        }
-      }
-    }
-
-    // 2. Essayer le champ text principal
-    if (
-      message.text &&
-      typeof message.text === "string" &&
-      message.text.trim()
-    ) {
-      return cleanText(message.text);
-    }
-
-    // 3. Essayer le champ content (format legacy string)
-    if (
-      messageObj.content &&
-      typeof messageObj.content === "string" &&
-      messageObj.content.trim()
-    ) {
-      return cleanText(messageObj.content);
-    }
-
-    // 4. Vérifier s'il y a des propriétés imbriquées
-    if (message.message && typeof message.message === "object") {
-      const nestedMessage = message.message as Record<string, unknown>;
-      if (nestedMessage.content && typeof nestedMessage.content === "string") {
-        return cleanText(nestedMessage.content);
-      }
-      if (nestedMessage.text && typeof nestedMessage.text === "string") {
-        return cleanText(nestedMessage.text);
-      }
-    }
-
-    // 5. Vérifier les propriétés spécifiques à LibreChat
-    // Parfois le contenu est dans une propriété 'parts'
-    if (
-      messageObj.parts &&
-      Array.isArray(messageObj.parts) &&
-      messageObj.parts.length > 0
-    ) {
-      const firstPart = messageObj.parts[0];
-      if (typeof firstPart === "string") {
-        return cleanText(firstPart);
-      }
-      if (firstPart && typeof firstPart === "object" && firstPart.text) {
-        return cleanText(firstPart.text);
-      }
-    }
-
-    // 6. Vérifier si c'est un message avec des métadonnées
-    if (messageObj.metadata && messageObj.metadata.text) {
-      return cleanText(messageObj.metadata.text);
-    }
-
-    // 7. Vérifier les propriétés alternatives
-    const alternativeFields = ["body", "messageText", "textContent", "data"];
-    for (const field of alternativeFields) {
-      const value = messageObj[field];
-      if (value && typeof value === "string" && value.trim()) {
-        return cleanText(value);
-      }
-    }
-
-    // Debug: afficher la structure du message si aucun contenu n'est trouvé
-    console.log("Message sans contenu trouvé:", {
-      messageId: message.messageId,
-      isCreatedByUser: message.isCreatedByUser,
-      keys: Object.keys(messageObj),
-      content: messageObj.content,
-      text: messageObj.text,
-    });
-
-    return "Contenu non disponible";
-  };
-
-  const handleShowMessages = (conversationId: string, userId: string) => {
-    if (
-      selectedConversationId === conversationId &&
-      selectedUserId === userId
-    ) {
-      setSelectedConversationId(null);
-      setSelectedUserId(null);
-    } else {
-      setSelectedConversationId(conversationId);
-      setSelectedUserId(userId);
-    }
-  };
-
-  const handleCloseMessages = () => {
-    setSelectedConversationId(null);
-    setSelectedUserId(null);
-  };
-
-  const getStatus = (conversation: LibreChatConversation) => {
-    if (conversation.isArchived) return "archived";
-    return "active";
-  };
-
-  const getStatusLabel = (status: string) => {
-    switch (status) {
-      case "archived":
-        return "Archivée";
-      case "active":
-        return "Active";
-      default:
-        return "Inconnue";
-    }
-  };
-
-  const getStatusVariant = (status: string) => {
-    switch (status) {
-      case "archived":
-        return "outline" as const;
-      case "active":
-        return "default" as const;
-      default:
-        return "secondary" as const;
-    }
-  };
-
-  if (loading) {
-    return (
-      <Card>
-        <CardContent className="p-6">
-          <div className="text-center">Chargement des conversations...</div>
-        </CardContent>
-      </Card>
-    );
-  }
+  // Map des users pour lookup rapide
+  const userMap = useMemo(() => new Map(users.map((u) => [u._id, u])), [users]);
 
   // Grouper les conversations par utilisateur
-  const groupedConversations = conversations.reduce((acc, conversation) => {
-    const userId = conversation.user || "unknown";
-    if (!acc[userId]) {
-      acc[userId] = [];
-    }
-    acc[userId].push(conversation);
-    return acc;
-  }, {} as Record<string, LibreChatConversation[]>);
+  const groupedByUser = useMemo((): UserGroup[] => {
+    const groups: Record<string, LibreChatConversation[]> = {};
+    conversations.forEach((conv) => {
+      const uId = String(conv.user);
+      if (!groups[uId]) groups[uId] = [];
+      groups[uId].push(conv);
+    });
+    return Object.entries(groups)
+      .map(([userId, convs]) => ({
+        userId,
+        conversations: convs.sort(
+          (a, b) => new Date(b.updatedAt).getTime() - new Date(a.updatedAt).getTime()
+        ),
+        totalMessages: convs.reduce((sum, c) => sum + (c.messages?.length || 0), 0),
+      }))
+      .sort((a, b) => {
+        // Trier par date de dernière conversation
+        const aDate = new Date(a.conversations[0]?.updatedAt || 0).getTime();
+        const bDate = new Date(b.conversations[0]?.updatedAt || 0).getTime();
+        return bDate - aDate;
+      });
+  }, [conversations]);
 
-  // Pagination des groupes d'utilisateurs
-  const totalPages = Math.ceil(
-    Object.keys(groupedConversations).length / limit
+  // Pagination sur les groupes d'utilisateurs
+  const totalUserGroups = groupedByUser.length;
+  const totalPages = Math.ceil(totalUserGroups / usersPerPage);
+  const paginatedGroups = groupedByUser.slice(
+    (page - 1) * usersPerPage,
+    page * usersPerPage
   );
-  const skip = (page - 1) * limit;
-  const userIds = Object.keys(groupedConversations).slice(skip, skip + limit);
+
+  // Toggle user group expansion
+  const toggleUserExpanded = useCallback((userId: string) => {
+    setExpandedUsers((prev) => {
+      const next = new Set(prev);
+      if (next.has(userId)) {
+        next.delete(userId);
+        // Fermer aussi la conversation si elle appartient à cet utilisateur
+        setExpandedConversation(null);
+      } else {
+        next.add(userId);
+      }
+      return next;
+    });
+  }, []);
+
+  // Toggle conversation expansion
+  const toggleConversationExpanded = useCallback((conversationId: string) => {
+    console.log("[Conversations] Toggle conversation:", conversationId);
+    setExpandedConversation((prev) =>
+      prev === conversationId ? null : conversationId
+    );
+  }, []);
+
+  const getUserInfo = useCallback(
+    (userId: string) => {
+      const user = userMap.get(userId);
+      return {
+        name: user?.name || user?.username || `User ${userId.slice(-6)}`,
+        email: user?.email || null,
+      };
+    },
+    [userMap]
+  );
+
+  // Extraction du contenu des messages
+  const getMessageContent = useCallback((message: LibreChatMessage): string => {
+    const msg = message as ExtendedMessage;
+
+    if (msg.content && Array.isArray(msg.content)) {
+      for (const item of msg.content) {
+        if (item?.text) return item.text.trim();
+      }
+    }
+    if (message.text?.trim()) return message.text.trim();
+    if (typeof msg.content === "string" && msg.content.trim()) return msg.content.trim();
+    if (msg.parts?.[0]) {
+      const part = msg.parts[0];
+      if (typeof part === "string") return part.trim();
+      if (part?.text) return part.text.trim();
+    }
+    return "Contenu non disponible";
+  }, []);
+
+  const clearSearch = () => {
+    setSearchInput("");
+    searchInputRef.current?.focus();
+  };
+
+  const isSearching = searchInput !== debouncedSearch || conversationsFetching;
 
   return (
-    <div className="space-y-6">
+    <div className="space-y-4">
       <Card>
-        <CardHeader>
+        <CardHeader className="pb-4">
+          <div className="flex flex-col gap-4 sm:flex-row sm:items-center sm:justify-between">
             <CardTitle className="flex items-center gap-2">
-            <Users className="h-5 w-5" />
-            Conversations par utilisateur
-          </CardTitle>
-          <p className="text-sm text-muted-foreground">
-            {Object.keys(groupedConversations).length} utilisateurs •{" "}
-            {conversations.length} conversations au total
-          </p>
-        </CardHeader>
-        <CardContent>
-          <div className="space-y-6">
-            {userIds.map((userId) => {
-              const conversations = groupedConversations[userId];
-              const totalMessages = conversations.reduce(
-                (sum, conv) => sum + (conv.messages?.length || 0),
-                0
-              );
-              const activeConversations = conversations.filter(
-                (conv) => !conv.isArchived
-              ).length;
-              const archivedConversations = conversations.filter(
-                (conv) => conv.isArchived
-              ).length;
-              const userName = getUserDisplayName(userId);
-              const userEmail = getUserEmail(userId);
-
-              return (
-                <div key={userId} className="border rounded-lg p-4">
-                  <div className="flex items-center justify-between mb-4">
-                    <div className="flex items-center gap-2">
-                      <Badge variant="outline" className="font-mono text-xs">
-                        {userId === "unknown" ? "unknown" : userId.slice(-8)}
-                      </Badge>
-                      <div className="flex flex-col">
-                        <span className="font-semibold">{userName}</span>
-                        {userEmail && (
-                          <span className="text-xs text-muted-foreground">
-                            {userEmail}
-                          </span>
-                        )}
-                      </div>
-                      <Badge variant="secondary">
-                        {conversations.length} conversation
-                        {conversations.length > 1 ? "s" : ""}
-                      </Badge>
-                      {activeConversations > 0 && (
-                        <Badge variant="default" className="text-xs">
-                          {activeConversations} actives
-                        </Badge>
-                      )}
-                      {archivedConversations > 0 && (
-                        <Badge variant="outline" className="text-xs">
-                          {archivedConversations} archivées
-                        </Badge>
-                      )}
-                    </div>
-                    <div className="flex items-center gap-4 text-sm text-muted-foreground">
-                      <div className="flex items-center gap-1">
-                        <MessageSquare className="h-4 w-4" />
-                        {totalMessages} message{totalMessages > 1 ? "s" : ""}
-                      </div>
-                      <div className="flex items-center gap-1">
-                        <Calendar className="h-4 w-4" />
-                        Dernière:{" "}
-                        {formatDate(
-                          new Date(
-                            Math.max(
-                              ...conversations.map((c) =>
-                                new Date(c.updatedAt).getTime()
-                              )
-                            )
-                          )
-                        )}
-                      </div>
-                    </div>
-                  </div>
-
-                  <div className="overflow-x-auto">
-                    <Table>
-                      <TableHeader>
-                        <TableRow>
-                          <TableHead>ID</TableHead>
-                          <TableHead>Titre</TableHead>
-                          <TableHead>Endpoint</TableHead>
-                          <TableHead>Modèle</TableHead>
-                          <TableHead>Messages</TableHead>
-                          <TableHead>Statut</TableHead>
-                          <TableHead>Créée le</TableHead>
-                        </TableRow>
-                      </TableHeader>
-                      <TableBody>
-                        {conversations
-                          .sort(
-                            (a, b) =>
-                              new Date(b.updatedAt).getTime() -
-                              new Date(a.updatedAt).getTime()
-                          )
-                          .map((conversation) => {
-                            const status = getStatus(conversation);
-                            const messageCount =
-                              conversation.messages?.length || 0;
-
-                            return (
-                              <TableRow key={conversation._id}>
-                                <TableCell>
-                                  <span className="font-mono text-xs">
-                                    {String(conversation._id).slice(-8)}
-                                  </span>
-                                </TableCell>
-                                <TableCell>
-                                  <span className="max-w-xs truncate block">
-                                    {String(conversation.title) || "Sans titre"}
-                                  </span>
-                                </TableCell>
-                                <TableCell>
-                                  <Badge variant="outline" className="text-xs">
-                                    {String(conversation.endpoint).slice(0, 20)}
-                                    {String(conversation.endpoint).length > 20
-                                      ? "..."
-                                      : ""}
-                                  </Badge>
-                                </TableCell>
-                                <TableCell>
-                                  <span className="text-xs text-muted-foreground font-mono">
-                                    {String(conversation.model)}
-                                  </span>
-                                </TableCell>
-                                <TableCell>
-                                  <Badge
-                                    variant="outline"
-                                    className="text-xs cursor-pointer hover:bg-primary hover:text-primary-foreground transition-colors"
-                                    onClick={() =>
-                                      handleShowMessages(
-                                        conversation.conversationId,
-                                        userId
-                                      )
-                                    }
-                                  >
-                                    {messageCount}
-                                  </Badge>
-                                </TableCell>
-                                <TableCell>
-                                  <Badge
-                                    variant={getStatusVariant(status)}
-                                    className="text-xs"
-                                  >
-                                    {getStatusLabel(status)}
-                                  </Badge>
-                                </TableCell>
-                                <TableCell>
-                                  <span className="text-xs text-muted-foreground">
-                                    {formatDate(conversation.createdAt)}
-                                  </span>
-                                </TableCell>
-                              </TableRow>
-                            );
-                          })}
-                      </TableBody>
-                    </Table>
-                  </div>
-
-                  {/* Section des messages pour cet utilisateur */}
-                  {selectedConversationId && selectedUserId === userId && (
-                    <div className="mt-6 border-t pt-6">
-                      <div className="flex items-center justify-between mb-4">
-                        <h3 className="text-lg font-semibold flex items-center gap-2">
               <MessageSquare className="h-5 w-5" />
-                          Messages de la conversation
-                        </h3>
-                        <Button
-                          variant="outline"
-                          size="sm"
-                          onClick={handleCloseMessages}
+              Conversations
+              <Badge variant="secondary" className="ml-2">
+                {total}
+              </Badge>
+              {conversationsFetching && !conversationsLoading && (
+                <Loader2 className="h-4 w-4 animate-spin text-muted-foreground" />
+              )}
+            </CardTitle>
+
+            {/* Barre de recherche */}
+            <div className="relative w-full sm:w-96">
+              <Search className="absolute left-3 top-1/2 h-4 w-4 -translate-y-1/2 text-muted-foreground" />
+              <Input
+                ref={searchInputRef}
+                placeholder="Rechercher par nom ou email..."
+                value={searchInput}
+                onChange={(e) => setSearchInput(e.target.value)}
+                className="pl-10 pr-10"
+              />
+              <div className="absolute right-3 top-1/2 -translate-y-1/2">
+                {isSearching ? (
+                  <Loader2 className="h-4 w-4 animate-spin text-muted-foreground" />
+                ) : searchInput ? (
+                  <button
+                    onClick={clearSearch}
+                    className="text-muted-foreground hover:text-foreground transition-colors"
+                    type="button"
                   >
                     <X className="h-4 w-4" />
-                          Fermer
-                        </Button>
+                  </button>
+                ) : null}
               </div>
-                      <p className="text-sm text-muted-foreground mb-4">
-                        Conversation ID: {selectedConversationId}
+            </div>
+          </div>
+
+          {debouncedSearch && (
+            <p className="text-sm text-muted-foreground mt-2">
+              {total} résultat{total > 1 ? "s" : ""} pour &quot;{debouncedSearch}&quot;
             </p>
-                      <div className="space-y-4 max-h-96 overflow-y-auto border rounded-lg p-4 bg-gray-50">
-                        {messages.length === 0 ? (
-                          <p className="text-center text-muted-foreground py-8">
-                            Aucun message trouvé pour cette conversation
+          )}
+        </CardHeader>
+
+        <CardContent>
+          {conversationsLoading ? (
+            <div className="space-y-3">
+              {Array.from({ length: 5 }).map((_, i) => (
+                <div key={i} className="h-14 bg-muted animate-pulse rounded-lg" />
+              ))}
+            </div>
+          ) : conversations.length === 0 ? (
+            <div className="text-center py-12 text-muted-foreground">
+              {debouncedSearch ? (
+                <>
+                  <Search className="h-12 w-12 mx-auto mb-4 opacity-20" />
+                  <p>Aucun résultat pour &quot;{debouncedSearch}&quot;</p>
+                  <Button variant="link" onClick={clearSearch} className="mt-2">
+                    Effacer la recherche
+                  </Button>
+                </>
+              ) : (
+                <p>Aucune conversation</p>
+              )}
+            </div>
+          ) : (
+            <>
+              {/* Liste des groupes d'utilisateurs */}
+              <div className="space-y-2">
+                {paginatedGroups.map((group) => {
+                  const userInfo = getUserInfo(group.userId);
+                  const isUserExpanded = expandedUsers.has(group.userId);
+
+                  return (
+                    <div key={group.userId} className="border rounded-lg overflow-hidden">
+                      {/* Header du groupe utilisateur */}
+                      <button
+                        onClick={() => toggleUserExpanded(group.userId)}
+                        className="w-full flex items-center gap-3 p-4 bg-muted/30 hover:bg-muted/50 transition-colors text-left"
+                      >
+                        <ChevronDown
+                          className={`h-5 w-5 text-muted-foreground transition-transform flex-shrink-0 ${
+                            isUserExpanded ? "rotate-0" : "-rotate-90"
+                          }`}
+                        />
+                        <div className="flex-1 min-w-0">
+                          <div className="flex items-center gap-2 flex-wrap">
+                            <span className="font-semibold">{userInfo.name}</span>
+                            {userInfo.email && (
+                              <span className="text-sm text-muted-foreground">
+                                ({userInfo.email})
+                              </span>
+                            )}
+                          </div>
+                        </div>
+                        <div className="flex items-center gap-2 flex-shrink-0">
+                          <Badge variant="secondary">
+                            {group.conversations.length} conversation{group.conversations.length > 1 ? "s" : ""}
+                          </Badge>
+                          <Badge variant="outline" className="text-xs">
+                            {group.totalMessages} msg{group.totalMessages > 1 ? "s" : ""}
+                          </Badge>
+                        </div>
+                      </button>
+
+                      {/* Liste des conversations de l'utilisateur */}
+                      {isUserExpanded && (
+                        <div className="border-t">
+                          {group.conversations.map((conv) => {
+                            const msgCount = conv.messages?.length || 0;
+                            const isConvExpanded = expandedConversation === conv.conversationId;
+
+                            return (
+                              <Fragment key={conv._id}>
+                                <button
+                                  onClick={() => toggleConversationExpanded(conv.conversationId)}
+                                  className={`w-full flex items-center gap-3 p-3 pl-10 hover:bg-muted/30 transition-colors text-left border-b last:border-b-0 ${
+                                    isConvExpanded ? "bg-muted/20" : ""
+                                  }`}
+                                >
+                                  <ChevronDown
+                                    className={`h-4 w-4 text-muted-foreground transition-transform flex-shrink-0 ${
+                                      isConvExpanded ? "rotate-0" : "-rotate-90"
+                                    }`}
+                                  />
+                                  <div className="flex-1 min-w-0">
+                                    <span className="truncate block text-sm font-medium">
+                                      {String(conv.title) || "Sans titre"}
+                                    </span>
+                                  </div>
+                                  <div className="flex items-center gap-2 flex-shrink-0">
+                                    <Badge variant="outline" className="text-xs font-mono">
+                                      {String(conv.endpoint).slice(0, 8)}
+                                    </Badge>
+                                    <Badge variant="secondary" className="text-xs">
+                                      {msgCount} msg{msgCount > 1 ? "s" : ""}
+                                    </Badge>
+                                    <Badge
+                                      variant={conv.isArchived ? "outline" : "default"}
+                                      className="text-xs"
+                                    >
+                                      {conv.isArchived ? "Archivée" : "Active"}
+                                    </Badge>
+                                    <span className="text-xs text-muted-foreground">
+                                      {formatDate(conv.updatedAt)}
+                                    </span>
+                                  </div>
+                                </button>
+
+                                {/* Messages de la conversation */}
+                                {isConvExpanded && (
+                                  <div className="bg-slate-50 p-4 pl-14 border-b">
+                                    {messagesLoading ? (
+                                      <div className="flex items-center justify-center py-8 gap-2 text-muted-foreground">
+                                        <Loader2 className="h-5 w-5 animate-spin" />
+                                        <span>Chargement des messages...</span>
+                                      </div>
+                                    ) : messages.length === 0 ? (
+                                      <p className="text-center py-8 text-muted-foreground">
+                                        Aucun message dans cette conversation
                                       </p>
                                     ) : (
-                          messages
+                                      <div className="space-y-3 max-h-[400px] overflow-y-auto">
+                                        {messages
                                           .sort(
                                             (a, b) =>
                                               new Date(a.createdAt).getTime() -
                                               new Date(b.createdAt).getTime()
                                           )
-                            .map((message) => {
-                              const content = getMessageContent(message);
+                                          .map((msg) => {
+                                            const content = getMessageContent(msg);
+                                            const isUser = msg.isCreatedByUser;
+
                                             return (
                                               <div
-                                  key={message._id}
-                                  className={`flex gap-3 p-4 rounded-lg ${
-                                    message.isCreatedByUser
-                                      ? "bg-blue-50 border-l-4 border-l-blue-500"
-                                      : "bg-white border-l-4 border-l-gray-500"
+                                                key={msg._id}
+                                                className={`flex gap-3 p-3 rounded-lg border-l-4 ${
+                                                  isUser
+                                                    ? "bg-blue-50 border-l-blue-500"
+                                                    : "bg-white border-l-gray-300"
                                                 }`}
                                               >
-                                  <div className="flex-shrink-0">
-                                    {message.isCreatedByUser ? (
-                                      <User className="h-5 w-5 text-blue-600" />
+                                                <div className="flex-shrink-0 mt-0.5">
+                                                  {isUser ? (
+                                                    <User className="h-4 w-4 text-blue-600" />
                                                   ) : (
-                                      <Bot className="h-5 w-5 text-gray-600" />
+                                                    <Bot className="h-4 w-4 text-gray-500" />
                                                   )}
                                                 </div>
-                                  <div className="flex-1 space-y-2">
-                                    <div className="flex items-center gap-2">
-                                      <Badge
-                                        variant={
-                                          message.isCreatedByUser
-                                            ? "default"
-                                            : "secondary"
-                                        }
-                                        className="text-xs"
-                                      >
-                                        {message.isCreatedByUser
-                                          ? "Utilisateur"
-                                          : "Assistant"}
-                                      </Badge>
-                                      <span className="text-xs text-muted-foreground">
-                                        {formatDate(message.createdAt)}
+                                                <div className="flex-1 min-w-0">
+                                                  <div className="flex items-center gap-2 mb-1 flex-wrap">
+                                                    <span className="text-xs font-medium">
+                                                      {isUser ? "Utilisateur" : "Assistant"}
+                                                    </span>
+                                                    <span className="text-xs text-muted-foreground">
+                                                      {formatDate(msg.createdAt)}
+                                                    </span>
+                                                    {msg.tokenCount > 0 && (
+                                                      <span className="text-xs text-muted-foreground">
+                                                        ({msg.tokenCount} tokens)
                                                       </span>
-                                      {message.tokenCount > 0 && (
-                                        <Badge
-                                          variant="outline"
-                                          className="text-xs"
-                                        >
-                                          {message.tokenCount} tokens
-                                        </Badge>
                                                     )}
-                                      <Badge
-                                        variant="outline"
-                                        className="text-xs font-mono"
-                                      >
-                                        {message._id.slice(-8)}
-                                      </Badge>
                                                   </div>
-                                    <div className="text-sm whitespace-pre-wrap">
+                                                  <div className="text-sm whitespace-pre-wrap break-words">
                                                     {content}
                                                   </div>
-                                    {message.error && (
-                                      <Badge
-                                        variant="destructive"
-                                        className="text-xs"
-                                      >
-                                        Erreur
-                                      </Badge>
-                                    )}
                                                 </div>
                                               </div>
                                             );
-                            })
+                                          })}
+                                      </div>
                                     )}
                                   </div>
+                                )}
+                              </Fragment>
+                            );
+                          })}
                         </div>
                       )}
                     </div>
@@ -527,33 +454,36 @@ export function ConversationsTable() {
                 })}
               </div>
 
+              {/* Pagination */}
               {totalPages > 1 && (
-            <div className="flex items-center justify-between mt-6">
+                <div className="flex items-center justify-between mt-4">
                   <p className="text-sm text-muted-foreground">
-                Page {page} sur {totalPages} • {total} conversations au total
+                    Page {page} / {totalPages} ({totalUserGroups} utilisateurs)
                   </p>
-              <div className="flex items-center gap-2">
+                  <div className="flex gap-2">
                     <Button
                       variant="outline"
                       size="sm"
-                  onClick={() => setPage(page - 1)}
+                      onClick={() => setPage((p) => Math.max(1, p - 1))}
                       disabled={page === 1}
                     >
                       <ChevronLeft className="h-4 w-4" />
-                  Précédent
+                      Préc.
                     </Button>
                     <Button
                       variant="outline"
                       size="sm"
-                  onClick={() => setPage(page + 1)}
+                      onClick={() => setPage((p) => Math.min(totalPages, p + 1))}
                       disabled={page === totalPages}
                     >
-                  Suivant
+                      Suiv.
                       <ChevronRight className="h-4 w-4" />
                     </Button>
                   </div>
                 </div>
               )}
+            </>
+          )}
         </CardContent>
       </Card>
     </div>

components/collections/transactions-table.tsx

@@ -14,7 +14,7 @@ import {
 import { Button } from "@/components/ui/button";
 import { Badge } from "@/components/ui/badge";
 import { ChevronLeft, ChevronRight } from "lucide-react";
-import { formatDate, formatCurrency } from "@/lib/utils";
+import { formatDate } from "@/lib/utils";
 import { LibreChatTransaction, LibreChatUser } from "@/lib/types";
 
 // Interface étendue pour les transactions avec description optionnelle
@@ -53,20 +53,15 @@ export function TransactionsTable() {
     return user?.name || user?.email || `Utilisateur ${userId.slice(-8)}`;
   };
 
-  // Fonction pour formater le montant en euros
-  const formatAmount = (rawAmount: number): string => {
-    // Convertir les tokens en euros (exemple: 1000 tokens = 1 euro)
-    const euros = rawAmount / 1000;
-    return formatCurrency(euros);
-  };
-
   // Fonction pour obtenir la description
   const getDescription = (transaction: LibreChatTransaction): string => {
     const transactionWithDesc = transaction as TransactionWithDescription;
 
-    if (transactionWithDesc.description && 
-        typeof transactionWithDesc.description === 'string' && 
-        transactionWithDesc.description !== "undefined") {
+    if (
+      transactionWithDesc.description &&
+      typeof transactionWithDesc.description === "string" &&
+      transactionWithDesc.description !== "undefined"
+    ) {
       return transactionWithDesc.description;
     }
 
@@ -111,7 +106,6 @@ export function TransactionsTable() {
                 <TableHead>ID</TableHead>
                 <TableHead>Utilisateur</TableHead>
                 <TableHead>Type</TableHead>
-                <TableHead>Montant</TableHead>
                 <TableHead>Tokens</TableHead>
                 <TableHead>Description</TableHead>
                 <TableHead>Date</TableHead>
@@ -151,11 +145,6 @@ export function TransactionsTable() {
                           {isCredit ? "Crédit" : "Débit"}
                         </Badge>
                       </TableCell>
-                      <TableCell>
-                        <span className="font-semibold">
-                          {formatAmount(transaction.rawAmount)}
-                        </span>
-                      </TableCell>
                       <TableCell>
                         {tokenAmount > 0 && (
                           <Badge variant="outline" className="text-xs">

components/collections/users-table.old.tsx

@@ -0,0 +1,215 @@
+"use client";
+
+import { useState, useMemo } from "react";
+import { useCollection } from "@/hooks/useCollection";
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import {
+  Table,
+  TableBody,
+  TableCell,
+  TableHead,
+  TableHeader,
+  TableRow,
+} from "@/components/ui/table";
+import { Button } from "@/components/ui/button";
+import { Badge } from "@/components/ui/badge";
+import { Input } from "@/components/ui/input";
+import { ChevronLeft, ChevronRight, Search } from "lucide-react";
+import { formatDate } from "@/lib/utils";
+import { LibreChatUser, LibreChatBalance } from "@/lib/types";
+
+export function UsersTable() {
+  const [page, setPage] = useState(1);
+  const [searchTerm, setSearchTerm] = useState("");
+  const limit = 20;
+
+  const {
+    data: users = [],
+    total = 0,
+    loading: usersLoading,
+  } = useCollection<LibreChatUser>("users", {
+    page,
+    limit,
+    // ✅ AJOUTER le searchTerm ici
+    search: searchTerm,
+  });
+
+  // Charger tous les balances pour associer les crédits
+  const { data: balances = [] } = useCollection<LibreChatBalance>("balances", {
+    limit: 1000, // Charger tous les balances
+  });
+
+  // Créer une map des crédits par utilisateur
+  const creditsMap = useMemo(() => {
+    const map = new Map<string, number>();
+    balances.forEach((balance) => {
+      map.set(balance.user, balance.tokenCredits || 0);
+    });
+    return map;
+  }, [balances]);
+
+  const totalPages = Math.ceil(total / limit);
+
+  const handlePrevPage = () => {
+    setPage((prev) => Math.max(1, prev - 1));
+  };
+
+  const handleNextPage = () => {
+    setPage((prev) => Math.min(totalPages, prev + 1));
+  };
+
+  if (usersLoading) {
+    return (
+      <Card>
+        <CardHeader>
+          <CardTitle>Liste des utilisateurs</CardTitle>
+        </CardHeader>
+        <CardContent>
+          <div className="space-y-4">
+            {Array.from({ length: 5 }).map((_, i) => (
+              <div key={i} className="h-16 bg-muted animate-pulse rounded" />
+            ))}
+          </div>
+        </CardContent>
+      </Card>
+    );
+  }
+
+  return (
+    <Card>
+      <CardHeader>
+        <div className="flex flex-col space-y-4 sm:flex-row sm:items-center sm:justify-between sm:space-y-0">
+          <CardTitle>
+            Liste des utilisateurs ({searchTerm ? users.length : total})
+          </CardTitle>
+          <div className="relative w-full sm:w-80">
+            <Search className="absolute left-3 top-1/2 h-4 w-4 -translate-y-1/2 text-muted-foreground" />
+            <Input
+              placeholder="Rechercher par nom ou email..."
+              value={searchTerm}
+              onChange={(e) => setSearchTerm(e.target.value)}
+              className="pl-10"
+            />
+          </div>
+        </div>
+      </CardHeader>
+      <CardContent>
+        <div className="rounded-md border">
+          <Table>
+            <TableHeader>
+              <TableRow>
+                <TableHead>ID</TableHead>
+                <TableHead>Nom</TableHead>
+                <TableHead>Email</TableHead>
+                <TableHead>Rôle</TableHead>
+                <TableHead>Crédits</TableHead>
+                <TableHead>Statut</TableHead>
+                <TableHead>Créé le</TableHead>
+              </TableRow>
+            </TableHeader>
+            <TableBody>
+              {users.length > 0 ? (
+                users.map((user) => {
+                  const userCredits = creditsMap.get(user._id) || 0;
+                  const isActive =
+                    new Date(user.updatedAt || user.createdAt) >
+                    new Date(Date.now() - 30 * 24 * 60 * 60 * 1000); // 30 jours en millisecondes
+
+                  return (
+                    <TableRow key={user._id}>
+                      <TableCell>
+                        <span className="font-mono text-xs">
+                          {user._id.slice(-8)}
+                        </span>
+                      </TableCell>
+                      <TableCell>
+                        <span className="font-medium">{user.name}</span>
+                      </TableCell>
+                      <TableCell>
+                        <span className="text-sm">{user.email}</span>
+                      </TableCell>
+                      <TableCell>
+                        <Badge
+                          variant={
+                            user.role === "ADMIN" ? "default" : "secondary"
+                          }
+                        >
+                          {user.role}
+                        </Badge>
+                      </TableCell>
+                      <TableCell>
+                        <span className="font-semibold">
+                          {userCredits.toLocaleString()} crédits
+                        </span>
+                      </TableCell>
+                      <TableCell>
+                        <span className="text-sm text-muted-foreground">
+                          <Badge variant={isActive ? "default" : "secondary"}>
+                            {isActive ? "Actif" : "Inactif"}
+                          </Badge>
+                        </span>
+                      </TableCell>
+                      <TableCell>
+                        <span className="text-sm text-muted-foreground">
+                          {formatDate(user.createdAt)}
+                        </span>
+                      </TableCell>
+                    </TableRow>
+                  );
+                })
+              ) : (
+                <TableRow>
+                  <TableCell
+                    colSpan={7}
+                    className="text-center py-8 text-muted-foreground"
+                  >
+                    {searchTerm
+                      ? `Aucun utilisateur trouvé pour "${searchTerm}"`
+                      : "Aucun utilisateur trouvé"}
+                  </TableCell>
+                </TableRow>
+              )}
+            </TableBody>
+          </Table>
+        </div>
+
+        {/* Pagination - masquée lors de la recherche */}
+        {!searchTerm && (
+          <div className="flex items-center justify-between space-x-2 py-4">
+            <div className="text-sm text-muted-foreground">
+              Page {page} sur {totalPages} ({total} éléments au total)
+            </div>
+            <div className="flex space-x-2">
+              <Button
+                variant="outline"
+                size="sm"
+                onClick={handlePrevPage}
+                disabled={page <= 1}
+              >
+                <ChevronLeft className="h-4 w-4" />
+                Précédent
+              </Button>
+              <Button
+                variant="outline"
+                size="sm"
+                onClick={handleNextPage}
+                disabled={page >= totalPages}
+              >
+                Suivant
+                <ChevronRight className="h-4 w-4" />
+              </Button>
+            </div>
+          </div>
+        )}
+
+        {/* Info de recherche */}
+        {searchTerm && (
+          <div className="py-4 text-sm text-muted-foreground">
+            {users.length} résultat(s) trouvé(s) pour &quot;{searchTerm}
+            &quot;
+          </div>
+        )}
+      </CardContent>
+    </Card>
+  );
+}

components/collections/users-table.tsx

@@ -1,6 +1,6 @@
 "use client";
 
-import { useState, useMemo } from "react";
+import { useState, useMemo, useEffect } from "react";
 import { useCollection } from "@/hooks/useCollection";
 import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
 import {
@@ -13,16 +13,30 @@ import {
 } from "@/components/ui/table";
 import { Button } from "@/components/ui/button";
 import { Badge } from "@/components/ui/badge";
-import { ChevronLeft, ChevronRight } from "lucide-react";
+import { Input } from "@/components/ui/input";
+import { ChevronLeft, ChevronRight, Search, X } from "lucide-react";
 import { formatDate } from "@/lib/utils";
 import { LibreChatUser, LibreChatBalance } from "@/lib/types";
 
+// Couleurs prédéfinies pour les référents
+const REFERENT_COLORS: Record<string, string> = {
+  "Emmanuel WATHELE": "#3B82F6",     // Bleu
+  "IHECS": "#10B981",                // Vert
+  "Patrice De La Broise": "#F59E0B", // Orange
+};
 
 export function UsersTable() {
   const [page, setPage] = useState(1);
+  const [searchInput, setSearchInput] = useState(""); // Ce que l'utilisateur tape
+  const [activeSearch, setActiveSearch] = useState(""); // Ce qui est réellement recherché
+  const [activeReferent, setActiveReferent] = useState<string | undefined>(undefined);
   const limit = 20;
 
-  // Charger les utilisateurs
+  // Réinitialiser la page à 1 quand une nouvelle recherche ou filtre est lancé
+  useEffect(() => {
+    setPage(1);
+  }, [activeSearch, activeReferent]);
+
   const {
     data: users = [],
     total = 0,
@@ -30,11 +44,37 @@ export function UsersTable() {
   } = useCollection<LibreChatUser>("users", {
     page,
     limit,
+    search: activeSearch,
+    referent: activeReferent,
   });
 
+  const handleReferentClick = (referent: string) => {
+    if (activeReferent === referent) {
+      setActiveReferent(undefined); // Toggle off
+    } else {
+      setActiveReferent(referent);
+    }
+  };
+
+  const clearReferentFilter = () => {
+    setActiveReferent(undefined);
+  };
+
+  // Fonction pour lancer la recherche
+  const handleSearch = () => {
+    setActiveSearch(searchInput);
+  };
+
+  // Gérer la touche Entrée
+  const handleKeyPress = (e: React.KeyboardEvent<HTMLInputElement>) => {
+    if (e.key === "Enter") {
+      handleSearch();
+    }
+  };
+
   // Charger tous les balances pour associer les crédits
   const { data: balances = [] } = useCollection<LibreChatBalance>("balances", {
-    limit: 1000, // Charger tous les balances
+    limit: 1000,
   });
 
   // Créer une map des crédits par utilisateur
@@ -76,27 +116,61 @@ export function UsersTable() {
   return (
     <Card>
       <CardHeader>
-        <CardTitle>Liste des utilisateurs ({total})</CardTitle>
+        <div className="flex flex-col space-y-4 sm:flex-row sm:items-center sm:justify-between sm:space-y-0">
+          <CardTitle>
+            Liste des utilisateurs ({total})
+          </CardTitle>
+          <div className="flex gap-2 w-full sm:w-auto items-center">
+            {activeReferent && (
+              <Badge
+                variant="secondary"
+                className="flex items-center gap-1 px-3 py-1"
+                style={{ backgroundColor: REFERENT_COLORS[activeReferent] || "#6B7280", color: "white" }}
+              >
+                {activeReferent}
+                <button
+                  onClick={clearReferentFilter}
+                  className="ml-1 hover:bg-white/20 rounded-full p-0.5"
+                >
+                  <X className="h-3 w-3" />
+                </button>
+              </Badge>
+            )}
+            <div className="relative flex-1 sm:w-80">
+              <Search className="absolute left-3 top-1/2 h-4 w-4 -translate-y-1/2 text-muted-foreground" />
+              <Input
+                placeholder="Rechercher par nom ou email..."
+                value={searchInput}
+                onChange={(e) => setSearchInput(e.target.value)}
+                onKeyPress={handleKeyPress}
+                className="pl-10"
+              />
+            </div>
+            <Button onClick={handleSearch} variant="default">
+              Rechercher
+            </Button>
+          </div>
+        </div>
       </CardHeader>
       <CardContent>
         <div className="rounded-md border">
           <Table>
             <TableHeader>
               <TableRow>
-                <TableHead>ID</TableHead>
+                <TableHead className="w-20">ID</TableHead>
                 <TableHead>Nom</TableHead>
                 <TableHead>Email</TableHead>
-                <TableHead>Rôle</TableHead>
-                <TableHead>Crédits</TableHead>
-                <TableHead>Statut</TableHead>
-                <TableHead>Créé le</TableHead>
+                <TableHead className="w-32">Référent</TableHead>
+                <TableHead className="w-20">Rôle</TableHead>
+                <TableHead className="w-32">Crédits</TableHead>
+                <TableHead className="w-28">Créé le</TableHead>
               </TableRow>
             </TableHeader>
             <TableBody>
-              {users.map((user) => {
+              {users.length > 0 ? (
+                users.map((user) => {
                   const userCredits = creditsMap.get(user._id) || 0;
-                const isActive = new Date(user.updatedAt || user.createdAt) > 
-                  new Date(Date.now() - 5 * 60 * 1000); // 5 minutes en millisecondes
+                  const referentColor = user.referent ? (REFERENT_COLORS[user.referent] || "#6B7280") : null;
 
                   return (
                     <TableRow key={user._id}>
@@ -106,13 +180,43 @@ export function UsersTable() {
                         </span>
                       </TableCell>
                       <TableCell>
+                        <div className="flex items-center gap-2">
+                          {referentColor && (
+                            <div
+                              className="w-3 h-3 rounded-full flex-shrink-0"
+                              style={{ backgroundColor: referentColor }}
+                              title={user.referent}
+                            />
+                          )}
                           <span className="font-medium">{user.name}</span>
+                        </div>
                       </TableCell>
                       <TableCell>
                         <span className="text-sm">{user.email}</span>
                       </TableCell>
                       <TableCell>
-                      <Badge variant={user.role === 'ADMIN' ? 'default' : 'secondary'}>
+                        {user.referent ? (
+                          <button
+                            onClick={() => handleReferentClick(user.referent!)}
+                            className={`text-sm truncate block max-w-[120px] hover:underline cursor-pointer transition-colors ${
+                              activeReferent === user.referent
+                                ? "font-bold text-primary"
+                                : "text-foreground hover:text-primary"
+                            }`}
+                            title={`Cliquer pour filtrer par ${user.referent}`}
+                          >
+                            {user.referent}
+                          </button>
+                        ) : (
+                          <span className="text-sm text-gray-400">-</span>
+                        )}
+                      </TableCell>
+                      <TableCell>
+                        <Badge
+                          variant={
+                            user.role === "ADMIN" ? "default" : "secondary"
+                          }
+                        >
                           {user.role}
                         </Badge>
                       </TableCell>
@@ -121,19 +225,26 @@ export function UsersTable() {
                           {userCredits.toLocaleString()} crédits
                         </span>
                       </TableCell>
-                    <TableCell>
-                      <Badge variant={isActive ? 'default' : 'destructive'}>
-                        {isActive ? 'Actif' : 'Inactif'}
-                      </Badge>
-                    </TableCell>
                       <TableCell>
                         <span className="text-sm text-muted-foreground">
-                        {formatDate(new Date(user.createdAt))}
+                          {formatDate(user.createdAt)}
                         </span>
                       </TableCell>
                     </TableRow>
                   );
-              })}
+                })
+              ) : (
+                <TableRow>
+                  <TableCell
+                    colSpan={7}
+                    className="text-center py-8 text-muted-foreground"
+                  >
+                    {activeSearch
+                      ? `Aucun utilisateur trouvé pour "${activeSearch}"`
+                      : "Aucun utilisateur trouvé"}
+                  </TableCell>
+                </TableRow>
+              )}
             </TableBody>
           </Table>
         </div>
@@ -141,7 +252,15 @@ export function UsersTable() {
         {/* Pagination */}
         <div className="flex items-center justify-between space-x-2 py-4">
           <div className="text-sm text-muted-foreground">
-            Page {page} sur {totalPages} ({total} éléments au total)
+            {activeSearch ? (
+              <span>
+                {total} résultat(s) pour &quot;{activeSearch}&quot; - Page {page} sur {totalPages}
+              </span>
+            ) : (
+              <span>
+                Page {page} sur {totalPages} ({total} utilisateurs au total)
+              </span>
+            )}
           </div>
           <div className="flex space-x-2">
             <Button

components/dashboard/add-credits-single-user.tsx

@@ -0,0 +1,274 @@
+"use client";
+
+import { useState } from "react";
+import { Button } from "@/components/ui/button";
+import {
+  Card,
+  CardContent,
+  CardDescription,
+  CardHeader,
+  CardTitle,
+} from "@/components/ui/card";
+import { Input } from "@/components/ui/input";
+import { Badge } from "@/components/ui/badge";
+import { Search, User, CheckCircle, Coins } from "lucide-react";
+
+interface UserResult {
+  _id: string;
+  name: string;
+  username: string;
+  email: string;
+  role: string;
+  referent?: string;
+  prenom?: string;
+  nom?: string;
+  createdAt: string;
+}
+
+interface BalanceInfo {
+  tokenCredits: number;
+  lastRefill?: string;
+}
+
+export default function AddCreditsSingleUser() {
+  const [searchTerm, setSearchTerm] = useState("");
+  const [searchResults, setSearchResults] = useState<UserResult[]>([]);
+  const [selectedUser, setSelectedUser] = useState<UserResult | null>(null);
+  const [userBalance, setUserBalance] = useState<BalanceInfo | null>(null);
+  const [searching, setSearching] = useState(false);
+  const [loadingBalance, setLoadingBalance] = useState(false);
+  const [adding, setAdding] = useState(false);
+  const [success, setSuccess] = useState<{ newBalance: number } | null>(null);
+
+  const searchUsers = async () => {
+    if (!searchTerm.trim()) return;
+
+    setSearching(true);
+    setSelectedUser(null);
+    setUserBalance(null);
+    setSuccess(null);
+
+    try {
+      const response = await fetch(
+        `/api/collections/users?search=${encodeURIComponent(searchTerm)}&limit=10`
+      );
+      const data = await response.json();
+
+      if (data.data) {
+        setSearchResults(data.data);
+      }
+    } catch (error) {
+      console.error("Erreur lors de la recherche:", error);
+    } finally {
+      setSearching(false);
+    }
+  };
+
+  const selectUser = async (user: UserResult) => {
+    setSelectedUser(user);
+    setSearchResults([]);
+    setSuccess(null);
+    setLoadingBalance(true);
+
+    try {
+      // Récupérer la balance de l'utilisateur
+      const response = await fetch(
+        `/api/collections/balances?search=${user._id}&limit=1`
+      );
+      const data = await response.json();
+
+      if (data.data && data.data.length > 0) {
+        setUserBalance({
+          tokenCredits: data.data[0].tokenCredits || 0,
+          lastRefill: data.data[0].lastRefill,
+        });
+      } else {
+        setUserBalance({ tokenCredits: 0 });
+      }
+    } catch (error) {
+      console.error("Erreur lors de la récupération de la balance:", error);
+      setUserBalance({ tokenCredits: 0 });
+    } finally {
+      setLoadingBalance(false);
+    }
+  };
+
+  const addCredits = async () => {
+    if (!selectedUser) return;
+
+    if (
+      !confirm(
+        `Êtes-vous sûr de vouloir ajouter 3 millions de crédits à ${selectedUser.name || selectedUser.email} ?`
+      )
+    ) {
+      return;
+    }
+
+    setAdding(true);
+
+    try {
+      const response = await fetch("/api/add-credits-single", {
+        method: "POST",
+        headers: {
+          "Content-Type": "application/json",
+        },
+        body: JSON.stringify({ userId: selectedUser._id }),
+      });
+
+      const data = await response.json();
+
+      if (data.success) {
+        setSuccess({ newBalance: data.newBalance });
+        setUserBalance({ tokenCredits: data.newBalance });
+      } else {
+        alert("Erreur: " + (data.error || data.message));
+      }
+    } catch (error) {
+      console.error("Erreur lors de l'ajout des crédits:", error);
+      alert("Erreur lors de l'ajout des crédits");
+    } finally {
+      setAdding(false);
+    }
+  };
+
+  const reset = () => {
+    setSearchTerm("");
+    setSearchResults([]);
+    setSelectedUser(null);
+    setUserBalance(null);
+    setSuccess(null);
+  };
+
+  return (
+    <Card className="w-full">
+      <CardHeader>
+        <CardTitle className="flex items-center gap-2">
+          <Coins className="h-5 w-5" />
+          Ajouter des Crédits à un Utilisateur
+        </CardTitle>
+        <CardDescription>
+          Rechercher un utilisateur et lui ajouter 3 millions de tokens
+        </CardDescription>
+      </CardHeader>
+      <CardContent className="space-y-4">
+        {/* Barre de recherche */}
+        <div className="flex gap-2">
+          <Input
+            placeholder="Rechercher par nom, email ou username..."
+            value={searchTerm}
+            onChange={(e) => setSearchTerm(e.target.value)}
+            onKeyDown={(e) => e.key === "Enter" && searchUsers()}
+          />
+          <Button onClick={searchUsers} disabled={searching}>
+            <Search className="h-4 w-4 mr-2" />
+            {searching ? "..." : "Rechercher"}
+          </Button>
+        </div>
+
+        {/* Résultats de recherche */}
+        {searchResults.length > 0 && (
+          <div className="border rounded-lg divide-y">
+            {searchResults.map((user) => (
+              <div
+                key={user._id}
+                className="p-3 hover:bg-gray-50 cursor-pointer flex items-center justify-between"
+                onClick={() => selectUser(user)}
+              >
+                <div className="flex items-center gap-3">
+                  <User className="h-5 w-5 text-gray-400" />
+                  <div>
+                    <p className="font-medium">{user.name || user.username}</p>
+                    <p className="text-sm text-gray-500">{user.email}</p>
+                  </div>
+                </div>
+                <Badge variant="outline">{user.role}</Badge>
+              </div>
+            ))}
+          </div>
+        )}
+
+        {/* Utilisateur sélectionné */}
+        {selectedUser && (
+          <div className="border rounded-lg p-4 bg-blue-50 space-y-3">
+            <h4 className="font-semibold text-blue-800 flex items-center gap-2">
+              <CheckCircle className="h-5 w-5" />
+              Utilisateur sélectionné
+            </h4>
+
+            <div className="grid grid-cols-2 gap-3 text-sm">
+              <div>
+                <span className="text-gray-600">ID:</span>
+                <p className="font-mono text-xs bg-white p-1 rounded mt-1">
+                  {selectedUser._id}
+                </p>
+              </div>
+              <div>
+                <span className="text-gray-600">Nom:</span>
+                <p className="font-medium">
+                  {selectedUser.name || selectedUser.username}
+                </p>
+              </div>
+              <div>
+                <span className="text-gray-600">Email:</span>
+                <p className="font-medium">{selectedUser.email}</p>
+              </div>
+              <div>
+                <span className="text-gray-600">Rôle:</span>
+                <Badge variant="secondary" className="ml-2">
+                  {selectedUser.role}
+                </Badge>
+              </div>
+              {selectedUser.referent && (
+                <div>
+                  <span className="text-gray-600">Référent:</span>
+                  <p className="font-medium">{selectedUser.referent}</p>
+                </div>
+              )}
+              <div>
+                <span className="text-gray-600">Crédits actuels:</span>
+                {loadingBalance ? (
+                  <p className="text-gray-500">Chargement...</p>
+                ) : (
+                  <p className="font-bold text-lg text-green-600">
+                    {userBalance?.tokenCredits.toLocaleString() || "0"}
+                  </p>
+                )}
+              </div>
+            </div>
+
+            {/* Boutons d'action */}
+            <div className="flex gap-2 pt-2 border-t">
+              <Button
+                onClick={addCredits}
+                disabled={adding || loadingBalance}
+                className="flex-1 bg-green-600 hover:bg-green-700"
+              >
+                {adding ? "Ajout en cours..." : "Ajouter 3M tokens"}
+              </Button>
+              <Button onClick={reset} variant="outline">
+                Annuler
+              </Button>
+            </div>
+          </div>
+        )}
+
+        {/* Message de succès */}
+        {success && (
+          <div className="border rounded-lg p-4 bg-green-50">
+            <h4 className="font-semibold text-green-800 flex items-center gap-2">
+              <CheckCircle className="h-5 w-5" />
+              Crédits ajoutés avec succès !
+            </h4>
+            <p className="text-green-700 mt-2">
+              Nouveau solde:{" "}
+              <span className="font-bold">
+                {success.newBalance.toLocaleString()}
+              </span>{" "}
+              tokens
+            </p>
+          </div>
+        )}
+      </CardContent>
+    </Card>
+  );
+}

components/dashboard/add-credits.tsx

@@ -0,0 +1,218 @@
+"use client";
+
+import { useState } from "react";
+import { Button } from "@/components/ui/button";
+import {
+  Card,
+  CardContent,
+  CardDescription,
+  CardHeader,
+  CardTitle,
+} from "@/components/ui/card";
+import { Badge } from "@/components/ui/badge";
+import { Plus, DollarSign, Users, TrendingUp } from "lucide-react";
+
+interface AddCreditsStats {
+  totalUsers: number;
+  totalBalances: number;
+  totalCredits: number;
+  averageCredits: number;
+  usersWithoutBalance: number;
+}
+
+interface AddCreditsResult {
+  totalUsers: number;
+  updatedBalances: number;
+  createdBalances: number;
+  creditsPerUser: number;
+  totalCreditsAdded: number;
+}
+
+export default function AddCredits() {
+  const [stats, setStats] = useState<AddCreditsStats | null>(null);
+  const [result, setResult] = useState<AddCreditsResult | null>(null);
+  const [loading, setLoading] = useState(false);
+  const [analyzing, setAnalyzing] = useState(false);
+
+  const analyzeCurrentCredits = async () => {
+    setAnalyzing(true);
+    try {
+      const response = await fetch("/api/add-credits");
+      const data = await response.json();
+
+      if (data.statistics) {
+        setStats(data.statistics);
+      }
+    } catch (error) {
+      console.error("Erreur lors de l'analyse:", error);
+    } finally {
+      setAnalyzing(false);
+    }
+  };
+
+  const addCreditsToAllUsers = async () => {
+    if (
+      !confirm(
+        "Êtes-vous sûr de vouloir ajouter 3 millions de crédits à TOUS les utilisateurs ? Cette action est irréversible."
+      )
+    ) {
+      return;
+    }
+
+    setLoading(true);
+    try {
+      const response = await fetch("/api/add-credits", {
+        method: "POST",
+      });
+
+      const data = await response.json();
+
+      if (data.success) {
+        setResult(data.statistics);
+        // Rafraîchir les stats
+        await analyzeCurrentCredits();
+      } else {
+        alert("Erreur: " + (data.error || data.message));
+      }
+    } catch (error) {
+      console.error("Erreur lors de l'ajout des crédits:", error);
+      alert("Erreur lors de l'ajout des crédits");
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  return (
+    <Card className="w-full">
+      <CardHeader>
+        <CardTitle className="flex items-center gap-2">
+          <Plus className="h-5 w-5" />
+          Ajouter des Crédits
+        </CardTitle>
+        <CardDescription>
+          Ajouter 3 millions de tokens à tous les utilisateurs existants
+        </CardDescription>
+      </CardHeader>
+      <CardContent className="space-y-4">
+        {/* Bouton d'analyse */}
+        <div className="flex gap-2">
+          <Button
+            onClick={analyzeCurrentCredits}
+            disabled={analyzing}
+            variant="outline"
+          >
+            {analyzing ? "Analyse..." : "Analyser les crédits actuels"}
+          </Button>
+        </div>
+
+        {/* Statistiques actuelles */}
+        {stats && (
+          <div className="grid grid-cols-2 md:grid-cols-4 gap-4">
+            <div className="bg-blue-50 p-3 rounded-lg">
+              <div className="flex items-center gap-2">
+                <Users className="h-4 w-4 text-blue-600" />
+                <span className="text-sm font-medium">Utilisateurs</span>
+              </div>
+              <p className="text-2xl font-bold text-blue-600">
+                {stats.totalUsers}
+              </p>
+            </div>
+
+            <div className="bg-green-50 p-3 rounded-lg">
+              <div className="flex items-center gap-2">
+                <DollarSign className="h-4 w-4 text-green-600" />
+                <span className="text-sm font-medium">Total Crédits</span>
+              </div>
+              <p className="text-2xl font-bold text-green-600">
+                {stats.totalCredits.toLocaleString()}
+              </p>
+            </div>
+
+            <div className="bg-purple-50 p-3 rounded-lg">
+              <div className="flex items-center gap-2">
+                <TrendingUp className="h-4 w-4 text-purple-600" />
+                <span className="text-sm font-medium">Moyenne</span>
+              </div>
+              <p className="text-2xl font-bold text-purple-600">
+                {stats.averageCredits.toLocaleString()}
+              </p>
+            </div>
+
+            <div className="bg-orange-50 p-3 rounded-lg">
+              <div className="flex items-center gap-2">
+                <Users className="h-4 w-4 text-orange-600" />
+                <span className="text-sm font-medium">Sans Balance</span>
+              </div>
+              <p className="text-2xl font-bold text-orange-600">
+                {stats.usersWithoutBalance}
+              </p>
+            </div>
+          </div>
+        )}
+
+        {/* Bouton d'ajout de crédits */}
+        {stats && (
+          <div className="border-t pt-4">
+            <div className="bg-yellow-50 border border-yellow-200 rounded-lg p-4 mb-4">
+              <h4 className="font-semibold text-yellow-800 mb-2">
+                ⚠️ Action Importante
+              </h4>
+              <p className="text-yellow-700 text-sm">
+                Cette action va ajouter <strong>3,000,000 crédits</strong> à
+                chacun des {stats.totalUsers} utilisateurs.
+                <br />
+                Total de crédits qui seront ajoutés:{" "}
+                <strong>{(stats.totalUsers * 3000000).toLocaleString()}</strong>
+              </p>
+            </div>
+
+            <Button
+              onClick={addCreditsToAllUsers}
+              disabled={loading}
+              className="w-full bg-green-600 hover:bg-green-700"
+            >
+              {loading
+                ? "Ajout en cours..."
+                : `Ajouter 3M crédits à ${stats.totalUsers} utilisateurs`}
+            </Button>
+          </div>
+        )}
+
+        {/* Résultats */}
+        {result && (
+          <div className="border-t pt-4">
+            <h4 className="font-semibold text-green-600 mb-3">
+              ✅ Crédits ajoutés avec succès !
+            </h4>
+            <div className="grid grid-cols-2 gap-4 text-sm">
+              <div>
+                <span className="text-gray-600">Balances mises à jour:</span>
+                <Badge variant="secondary" className="ml-2">
+                  {result.updatedBalances}
+                </Badge>
+              </div>
+              <div>
+                <span className="text-gray-600">Nouvelles balances:</span>
+                <Badge variant="secondary" className="ml-2">
+                  {result.createdBalances}
+                </Badge>
+              </div>
+              <div>
+                <span className="text-gray-600">Crédits par utilisateur:</span>
+                <Badge variant="secondary" className="ml-2">
+                  {result.creditsPerUser.toLocaleString()}
+                </Badge>
+              </div>
+              <div>
+                <span className="text-gray-600">Total ajouté:</span>
+                <Badge variant="secondary" className="ml-2">
+                  {result.totalCreditsAdded.toLocaleString()}
+                </Badge>
+              </div>
+            </div>
+          </div>
+        )}
+      </CardContent>
+    </Card>
+  );
+}

components/dashboard/charts/model-distribution-chart.tsx

@@ -13,42 +13,203 @@ import {
 
 interface ModelDistributionChartProps {
   title: string;
+  subtitle?: string;
   data: Array<{
     name: string;
     value: number;
-  }>;
-}
-
-interface TooltipPayload {
-  value: number;
-  payload: {
+    color?: string;
+    models?: Array<{
       name: string;
       value: number;
+    }>;
+  }>;
+  showLegend?: boolean;
+  totalTokens?: number;
+}
+
+interface ModelData {
+  name: string;
+  value: number;
+}
+
+interface StackedDataEntry {
+  provider: string;
+  total: number;
+  models: ModelData[];
+  baseColor: string;
+  modelColors: string[];
+  [key: string]: string | number | ModelData[] | string[];
+}
+
+interface ModelInfo {
+  color: string;
+  name: string;
+  provider: string;
+}
+
+// Couleurs par fournisseur (couleurs de base)
+const providerColors: { [key: string]: string } = {
+  Anthropic: "#7C3AED", // Violet vif
+  OpenAI: "#059669", // Vert turquoise vif
+  "Mistral AI": "#D97706", // Orange vif
+  Meta: "#DB2777", // Rose/Magenta vif
+  Google: "#2563EB", // Bleu vif
+  Cohere: "#0891B2", // Cyan vif
+};
+
+// Fonction pour générer des variations de couleur pour les modèles d'un même provider
+const generateModelColors = (baseColor: string, modelCount: number) => {
+  const colors = [];
+  for (let i = 0; i < modelCount; i++) {
+    // Créer des variations en ajustant la luminosité
+    const opacity = 1 - i * 0.15; // De 1.0 à 0.4 environ
+    colors.push(
+      `${baseColor}${Math.round(opacity * 255)
+        .toString(16)
+        .padStart(2, "0")}`
+    );
+  }
+  return colors;
+};
+
+// Fonction pour regrouper les modèles par fournisseur et préparer les données pour le graphique empilé
+const prepareStackedData = (
+  modelData: Array<{ name: string; value: number }>
+) => {
+  const providerMap: {
+    [key: string]: {
+      value: number;
+      models: Array<{ name: string; value: number }>;
     };
-}
+  } = {};
 
-interface CustomTooltipProps {
+  modelData.forEach((model) => {
+    let provider = "";
+
+    // Déterminer le fournisseur basé sur le nom du modèle
+    if (
+      model.name.toLowerCase().includes("claude") ||
+      model.name.toLowerCase().includes("anthropic")
+    ) {
+      provider = "Anthropic";
+    } else if (
+      model.name.toLowerCase().includes("gpt") ||
+      model.name.toLowerCase().includes("openai")
+    ) {
+      provider = "OpenAI";
+    } else if (model.name.toLowerCase().includes("mistral")) {
+      provider = "Mistral AI";
+    } else if (
+      model.name.toLowerCase().includes("llama") ||
+      model.name.toLowerCase().includes("meta")
+    ) {
+      provider = "Meta";
+    } else if (
+      model.name.toLowerCase().includes("palm") ||
+      model.name.toLowerCase().includes("gemini") ||
+      model.name.toLowerCase().includes("google")
+    ) {
+      provider = "Google";
+    } else if (model.name.toLowerCase().includes("cohere")) {
+      provider = "Cohere";
+    } else {
+      provider = "Autres";
+    }
+
+    if (!providerMap[provider]) {
+      providerMap[provider] = { value: 0, models: [] };
+    }
+
+    providerMap[provider].value += model.value;
+    providerMap[provider].models.push(model);
+  });
+
+  // Créer les données pour le graphique empilé
+  const stackedData: StackedDataEntry[] = Object.entries(providerMap).map(
+    ([providerName, data]) => {
+      const baseColor = providerColors[providerName] || "#6B7280";
+      const modelColors = generateModelColors(baseColor, data.models.length);
+
+      // Créer un objet avec le provider comme clé et chaque modèle comme propriété
+      const stackedEntry: StackedDataEntry = {
+        provider: providerName,
+        total: data.value,
+        models: data.models,
+        baseColor,
+        modelColors,
+      };
+
+      // Ajouter chaque modèle comme propriété séparée pour le stacking
+      data.models.forEach((model, index) => {
+        const modelKey = `${providerName}_${model.name}`;
+        stackedEntry[modelKey] = model.value;
+        stackedEntry[`${modelKey}_color`] = modelColors[index];
+        stackedEntry[`${modelKey}_name`] = model.name;
+      });
+
+      return stackedEntry;
+    }
+  );
+
+  // Créer la liste de tous les modèles uniques pour les barres
+  const allModelKeys: string[] = [];
+  const modelInfo: { [key: string]: ModelInfo } = {};
+
+  stackedData.forEach((entry) => {
+    entry.models.forEach((model, index) => {
+      const modelKey = `${entry.provider}_${model.name}`;
+      allModelKeys.push(modelKey);
+      modelInfo[modelKey] = {
+        color: entry.modelColors[index],
+        name: model.name,
+        provider: entry.provider,
+      };
+    });
+  });
+
+  return { stackedData, allModelKeys, modelInfo };
+};
+
+interface CustomStackedTooltipProps {
   active?: boolean;
-  payload?: TooltipPayload[];
+  payload?: Array<{
+    payload: StackedDataEntry;
+  }>;
+  label?: string;
 }
 
-const CustomTooltip = ({ active, payload }: CustomTooltipProps) => {
+const CustomStackedTooltip = ({
+  active,
+  payload,
+  label,
+}: CustomStackedTooltipProps) => {
   if (active && payload && payload.length) {
+    const providerData = payload[0].payload;
+    const totalTokens = providerData.total;
+
     return (
-      <div style={{
-        backgroundColor: "hsl(var(--background))",
-        border: "1px solid hsl(var(--border))",
-        borderRadius: "8px",
-        padding: "8px",
-        fontSize: "12px"
-      }}>
-        <p style={{ margin: 0, color: "#ff0000" }}>
-          {`${payload[0].value.toLocaleString()} tokens`}
+      <div className="bg-white p-3 border rounded-lg shadow-lg">
+        <p className="font-semibold">{label}</p>
+        <p className="text-blue-600 font-medium">
+          Total: {totalTokens.toLocaleString()} tokens
         </p>
-        <p style={{ margin: 0, color: "#ff0000" }}>
-          {payload[0].payload.name}
+        {providerData.models && (
+          <div className="mt-2 space-y-1">
+            <p className="text-sm font-medium text-gray-600">Modèles:</p>
+            {providerData.models.map((model, index) => (
+              <div key={index} className="flex items-center gap-2">
+                <div
+                  className="w-3 h-3 rounded-full"
+                  style={{ backgroundColor: providerData.modelColors[index] }}
+                />
+                <p className="text-xs text-gray-700">
+                  {model.name}: {model.value.toLocaleString()} tokens
                 </p>
               </div>
+            ))}
+          </div>
+        )}
+      </div>
     );
   }
   return null;
@@ -56,39 +217,148 @@ const CustomTooltip = ({ active, payload }: CustomTooltipProps) => {
 
 export function ModelDistributionChart({
   title,
+  subtitle,
   data,
+  totalTokens,
 }: ModelDistributionChartProps) {
+  // Si les données sont déjà groupées par fournisseur, les utiliser directement
+  // Sinon, les regrouper automatiquement
+  const modelData = data[0]?.models
+    ? data.flatMap((d) => d.models || [])
+    : data;
+  const { stackedData, allModelKeys, modelInfo } =
+    prepareStackedData(modelData);
+
   return (
     <Card>
       <CardHeader className="pb-2">
         <CardTitle className="text-sm font-medium text-muted-foreground">
           {title}
         </CardTitle>
+        {subtitle && (
+          <p className="text-xs text-muted-foreground mt-1">{subtitle}</p>
+        )}
       </CardHeader>
       <CardContent className="pt-0">
-        <ResponsiveContainer width="100%" height={200}>
-          <BarChart data={data}>
+        <ResponsiveContainer width="100%" height={300}>
+          <BarChart
+            data={stackedData}
+            margin={{ top: 10, right: 10, left: 10, bottom: 60 }}
+          >
             <CartesianGrid strokeDasharray="3 3" className="stroke-muted/20" />
             <XAxis
-              dataKey="name"
+              dataKey="provider"
               axisLine={false}
               tickLine={false}
               className="text-xs fill-muted-foreground"
-              tick={false}
+              angle={-45}
+              textAnchor="end"
+              height={80}
+              interval={0}
             />
             <YAxis
               axisLine={false}
               tickLine={false}
               className="text-xs fill-muted-foreground"
+              tickFormatter={(value) => {
+                if (value >= 1000000) return `${(value / 1000000).toFixed(1)}M`;
+                if (value >= 1000) return `${(value / 1000).toFixed(1)}K`;
+                return value.toString();
+              }}
             />
-            <Tooltip content={<CustomTooltip />} />
+            <Tooltip content={<CustomStackedTooltip />} />
+
+            {/* Créer une barre empilée pour chaque modèle */}
+            {allModelKeys.map((modelKey) => (
               <Bar
-              dataKey="value"
-              fill="#000000"
-              radius={[4, 4, 0, 0]}
+                key={modelKey}
+                dataKey={modelKey}
+                stackId="models"
+                fill={modelInfo[modelKey].color}
+                radius={0}
               />
+            ))}
           </BarChart>
         </ResponsiveContainer>
+
+        {/* Légende des providers avec leurs couleurs de base */}
+        <div className="mt-4 grid grid-cols-2 gap-3">
+          {stackedData.map((item, index) => (
+            <div
+              key={index}
+              className="p-3 rounded-lg border border-muted/20 bg-muted/5 hover:bg-muted/10 transition-colors"
+              style={{
+                borderLeftColor: item.baseColor,
+                borderLeftWidth: "3px",
+                borderLeftStyle: "solid",
+              }}
+            >
+              <div className="flex items-center gap-2 mb-1">
+                <div
+                  className="w-2 h-2 rounded-full"
+                  style={{ backgroundColor: item.baseColor }}
+                ></div>
+                <h3
+                  className="text-sm font-medium"
+                  style={{ color: item.baseColor }}
+                >
+                  {item.provider}
+                </h3>
+              </div>
+              <p className="text-lg font-semibold text-foreground">
+                {item.total.toLocaleString()}
+              </p>
+              <p className="text-xs text-muted-foreground">
+                {item.models.length} modèle{item.models.length > 1 ? "s" : ""}
+              </p>
+            </div>
+          ))}
+        </div>
+
+        {/* Total général */}
+        {totalTokens && (
+          <div className="mt-4 pt-3 border-t border-muted/20 text-center">
+            <p className="text-sm text-muted-foreground">
+              Total général:{" "}
+              <span className="font-semibold text-foreground">
+                {totalTokens.toLocaleString()}
+              </span>{" "}
+              tokens
+            </p>
+          </div>
+        )}
+
+        {/* Légende détaillée des modèles avec leurs couleurs spécifiques */}
+        <div className="mt-4 pt-3 border-t border-muted/20">
+          <h4 className="text-sm font-medium text-muted-foreground mb-3 text-center">
+            Modèles par provider
+          </h4>
+          <div className="space-y-3">
+            {stackedData.map((provider) => (
+              <div key={provider.provider} className="space-y-1">
+                <h5
+                  className="text-xs font-medium"
+                  style={{ color: provider.baseColor }}
+                >
+                  {provider.provider}
+                </h5>
+                <div className="flex flex-wrap gap-x-4 gap-y-1 ml-2">
+                  {provider.models.map((model, index) => (
+                    <div key={index} className="flex items-center gap-1">
+                      <div
+                        className="w-2 h-2 rounded-full flex-shrink-0"
+                        style={{ backgroundColor: provider.modelColors[index] }}
+                      ></div>
+                      <span className="text-xs text-muted-foreground">
+                        {model.name} ({model.value.toLocaleString()})
+                      </span>
+                    </div>
+                  ))}
+                </div>
+              </div>
+            ))}
+          </div>
+        </div>
       </CardContent>
     </Card>
   );

components/dashboard/charts/real-user-activity-chart.tsx

@@ -44,12 +44,12 @@ export function RealUserActivityChart() {
     {
       name: "Utilisateurs actifs",
       value: activity.activeUsers,
-      color: "#22c55e", // Vert clair pour actifs
+      color: "#000000", // Noir pour actifs
     },
     {
       name: "Utilisateurs inactifs",
       value: activity.inactiveUsers,
-      color: "#ef4444", // Rouge pour inactifs
+      color: "#666666", // Gris pour inactifs
     },
   ];
 
@@ -62,7 +62,7 @@ export function RealUserActivityChart() {
           Activité des utilisateurs
         </CardTitle>
         <p className="text-sm text-muted-foreground">
-          Actifs = connectés dans les 7 derniers jours
+          Actifs = connectés dans les 30 derniers jours
         </p>
       </CardHeader>
       <CardContent>
@@ -74,8 +74,10 @@ export function RealUserActivityChart() {
               cy="50%"
               innerRadius={60}
               outerRadius={100}
-              paddingAngle={5}
+              paddingAngle={2}
               dataKey="value"
+              stroke="#ffffff"
+              strokeWidth={2}
             >
               {data.map((entry, index) => (
                 <Cell key={`cell-${index}`} fill={entry.color} />
@@ -86,17 +88,20 @@ export function RealUserActivityChart() {
                 backgroundColor: "hsl(var(--background))",
                 border: "1px solid hsl(var(--border))",
                 borderRadius: "8px",
+                fontSize: "12px"
               }}
               formatter={(value: number) => [
-                `${value} utilisateurs (${((value / total) * 100).toFixed(
-                  1
-                )}%)`,
+                `${value} utilisateurs (${((value / total) * 100).toFixed(1)}%)`,
                 "",
               ]}
             />
             <Legend
+              wrapperStyle={{
+                paddingTop: "20px",
+                fontSize: "12px"
+              }}
               formatter={(value, entry) => (
-                <span style={{ color: entry.color }}>
+                <span style={{ color: entry.color, fontWeight: 500 }}>
                   {value}: {entry.payload?.value} (
                   {((entry.payload?.value / total) * 100).toFixed(1)}%)
                 </span>

components/dashboard/charts/simple-stats-chart.tsx

@@ -31,8 +31,8 @@ export function SimpleStatsChart({ title, data, color = "hsl(var(--primary))" }:
           <AreaChart data={data}>
             <defs>
               <linearGradient id="colorGradient" x1="0" y1="0" x2="0" y2="1">
-                <stop offset="5%" stopColor={color} stopOpacity={0.3}/>
-                <stop offset="95%" stopColor={color} stopOpacity={0}/>
+                <stop offset="5%" stopColor={color} stopOpacity={0.8}/>
+                <stop offset="95%" stopColor={color} stopOpacity={0.2}/>
               </linearGradient>
             </defs>
             <CartesianGrid strokeDasharray="3 3" className="stroke-muted/20" />
@@ -46,6 +46,11 @@ export function SimpleStatsChart({ title, data, color = "hsl(var(--primary))" }:
               axisLine={false}
               tickLine={false}
               className="text-xs fill-muted-foreground"
+              tickFormatter={(value) => {
+                if (value >= 1000000) return `${(value / 1000000).toFixed(1)}M`;
+                if (value >= 1000) return `${(value / 1000).toFixed(1)}K`;
+                return value.toString();
+              }}
             />
             <Tooltip 
               contentStyle={{
@@ -54,12 +59,16 @@ export function SimpleStatsChart({ title, data, color = "hsl(var(--primary))" }:
                 borderRadius: '8px',
                 fontSize: '12px'
               }}
+              formatter={(value: number) => [
+                value >= 1000 ? `${(value / 1000).toFixed(1)}K tokens` : `${value} tokens`,
+                'Tokens consommés'
+              ]}
             />
             <Area 
               type="monotone" 
               dataKey="value" 
               stroke={color}
-              strokeWidth={2}
+              strokeWidth={3}
               fill="url(#colorGradient)"
             />
           </AreaChart>

components/dashboard/charts/user-activity-chart.tsx

@@ -20,12 +20,12 @@ export function UserActivityChart({ activeUsers, inactiveUsers }: UserActivityCh
     { 
       name: 'Utilisateurs actifs', 
       value: activeUsers, 
-      color: '#22c55e' // Vert clair pour actifs
+      color: '#000000' // Noir pour actifs
     },
     { 
       name: 'Utilisateurs inactifs', 
       value: inactiveUsers, 
-      color: '#ef4444' // Rouge pour inactifs
+      color: '#666666' // Gris pour inactifs
     },
   ];
 
@@ -36,7 +36,7 @@ export function UserActivityChart({ activeUsers, inactiveUsers }: UserActivityCh
       <CardHeader>
         <CardTitle className="text-base font-medium">Activité des utilisateurs</CardTitle>
         <p className="text-sm text-muted-foreground">
-          Actifs = connectés dans les 7 derniers jours
+          Actifs = connectés dans les 30 derniers jours
         </p>
       </CardHeader>
       <CardContent>
@@ -48,8 +48,10 @@ export function UserActivityChart({ activeUsers, inactiveUsers }: UserActivityCh
               cy="50%"
               innerRadius={60}
               outerRadius={100}
-              paddingAngle={5}
+              paddingAngle={2}
               dataKey="value"
+              stroke="#ffffff"
+              strokeWidth={2}
             >
               {data.map((entry, index) => (
                 <Cell key={`cell-${index}`} fill={entry.color} />
@@ -60,16 +62,22 @@ export function UserActivityChart({ activeUsers, inactiveUsers }: UserActivityCh
                 backgroundColor: 'hsl(var(--background))',
                 border: '1px solid hsl(var(--border))',
                 borderRadius: '8px',
+                fontSize: '12px'
               }}
               formatter={(value: number) => [
                 `${value} utilisateurs (${((value / total) * 100).toFixed(1)}%)`,
-                ''
+                '',
               ]}
             />
             <Legend
+              wrapperStyle={{
+                paddingTop: "20px",
+                fontSize: "12px"
+              }}
               formatter={(value, entry) => (
-                <span style={{ color: entry.color }}>
-                  {value}: {entry.payload?.value} ({((entry.payload?.value / total) * 100).toFixed(1)}%)
+                <span style={{ color: entry.color, fontWeight: 500 }}>
+                  {value}: {entry.payload?.value} (
+                  {((entry.payload?.value / total) * 100).toFixed(1)}%)
                 </span>
               )}
             />

components/dashboard/charts/user-connections-chart.tsx

@@ -0,0 +1,80 @@
+"use client";
+
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { 
+  AreaChart, 
+  Area, 
+  XAxis, 
+  YAxis, 
+  CartesianGrid, 
+  Tooltip, 
+  ResponsiveContainer 
+} from "recharts";
+
+interface UserConnectionsChartProps {
+  title: string;
+  data: Array<{
+    name: string;
+    value: number;
+  }>;
+  color?: string;
+}
+
+export function UserConnectionsChart({ title, data, color = "hsl(var(--chart-2))" }: UserConnectionsChartProps) {
+  console.log("UserConnectionsChart - data:", data);
+  console.log("UserConnectionsChart - title:", title);
+  
+  return (
+    <Card>
+      <CardHeader className="pb-2">
+        <CardTitle className="text-sm font-medium text-muted-foreground">{title}</CardTitle>
+      </CardHeader>
+      <CardContent className="pt-0">
+        <ResponsiveContainer width="100%" height={200}>
+          <AreaChart data={data}>
+            <defs>
+              <linearGradient id="connectionsGradient" x1="0" y1="0" x2="0" y2="1">
+                <stop offset="5%" stopColor={color} stopOpacity={0.8}/>
+                <stop offset="95%" stopColor={color} stopOpacity={0.2}/>
+              </linearGradient>
+            </defs>
+            <CartesianGrid strokeDasharray="3 3" className="stroke-muted/20" />
+            <XAxis 
+              dataKey="name" 
+              axisLine={false}
+              tickLine={false}
+              className="text-xs fill-muted-foreground"
+            />
+            <YAxis 
+              axisLine={false}
+              tickLine={false}
+              className="text-xs fill-muted-foreground"
+              tickFormatter={(value) => {
+                return value.toString();
+              }}
+            />
+            <Tooltip 
+              contentStyle={{
+                backgroundColor: 'hsl(var(--background))',
+                border: '1px solid hsl(var(--border))',
+                borderRadius: '8px',
+                fontSize: '12px'
+              }}
+              formatter={(value: number) => [
+                `${value} utilisateur${value > 1 ? 's' : ''}`,
+                'Connexions'
+              ]}
+            />
+            <Area 
+              type="monotone" 
+              dataKey="value" 
+              stroke={color}
+              strokeWidth={3}
+              fill="url(#connectionsGradient)"
+            />
+          </AreaChart>
+        </ResponsiveContainer>
+      </CardContent>
+    </Card>
+  );
+}

components/dashboard/create-user.tsx

@@ -0,0 +1,278 @@
+"use client";
+
+import { useState } from "react";
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { Label } from "@/components/ui/label";
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "@/components/ui/select";
+import { Alert, AlertDescription } from "@/components/ui/alert";
+import { UserPlus, Loader2, CheckCircle, AlertCircle } from "lucide-react";
+
+interface CreateUserResult {
+  success: boolean;
+  message: string;
+  user?: {
+    id: string;
+    name: string;
+    email: string;
+    role: string;
+    createdAt: string;
+  };
+  error?: string;
+}
+
+export default function CreateUser() {
+  const [formData, setFormData] = useState({
+    name: "",
+    email: "",
+    password: "",
+    confirmPassword: "",
+    role: "USER",
+  });
+  const [isLoading, setIsLoading] = useState(false);
+  const [result, setResult] = useState<CreateUserResult | null>(null);
+
+  const handleInputChange = (field: string, value: string) => {
+    setFormData((prev) => ({ ...prev, [field]: value }));
+    // Réinitialiser le résultat quand l'utilisateur modifie le formulaire
+    if (result) {
+      setResult(null);
+    }
+  };
+
+  const validateForm = () => {
+    if (!formData.name.trim()) {
+      return "Le nom est requis";
+    }
+    if (!formData.email.trim()) {
+      return "L&apos;email est requis";
+    }
+    if (!formData.password) {
+      return "Le mot de passe est requis";
+    }
+    if (formData.password.length < 8) {
+      return "Le mot de passe doit contenir au moins 8 caractères";
+    }
+    if (formData.password !== formData.confirmPassword) {
+      return "Les mots de passe ne correspondent pas";
+    }
+    const emailRegex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
+    if (!emailRegex.test(formData.email)) {
+      return "Format d&apos;email invalide";
+    }
+    return null;
+  };
+
+  const handleSubmit = async (e: React.FormEvent) => {
+    e.preventDefault();
+
+    const validationError = validateForm();
+    if (validationError) {
+      setResult({
+        success: false,
+        message: validationError,
+      });
+      return;
+    }
+
+    setIsLoading(true);
+    setResult(null);
+
+    try {
+      const response = await fetch("/api/create-user", {
+        method: "POST",
+        headers: {
+          "Content-Type": "application/json",
+        },
+        body: JSON.stringify({
+          name: formData.name.trim(),
+          email: formData.email.trim().toLowerCase(),
+          password: formData.password,
+          role: formData.role,
+        }),
+      });
+
+      const data = await response.json();
+
+      if (response.ok) {
+        setResult({
+          success: true,
+          message: data.message,
+          user: data.user,
+        });
+        // Réinitialiser le formulaire en cas de succès
+        setFormData({
+          name: "",
+          email: "",
+          password: "",
+          confirmPassword: "",
+          role: "USER",
+        });
+      } else {
+        setResult({
+          success: false,
+          message:
+            data.error || "Erreur lors de la création de l&apos;utilisateur",
+        });
+      }
+    } catch (error) {
+      console.error("Erreur lors de la création de l&apos;utilisateur:", error);
+      setResult({
+        success: false,
+        message: "Erreur de connexion au serveur",
+      });
+    } finally {
+      setIsLoading(false);
+    }
+  };
+
+  return (
+    <Card>
+      <CardHeader>
+        <CardTitle className="flex items-center gap-2">
+          <UserPlus className="h-5 w-5" />
+          Créer un nouvel utilisateur
+        </CardTitle>
+      </CardHeader>
+      <CardContent>
+        <form onSubmit={handleSubmit} className="space-y-4">
+          <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+            <div className="space-y-2">
+              <Label htmlFor="name">Nom complet *</Label>
+              <Input
+                id="name"
+                type="text"
+                placeholder="Ex: Jean Dupont"
+                value={formData.name}
+                onChange={(e) => handleInputChange("name", e.target.value)}
+                disabled={isLoading}
+                required
+              />
+            </div>
+
+            <div className="space-y-2">
+              <Label htmlFor="email">Adresse email *</Label>
+              <Input
+                id="email"
+                type="email"
+                placeholder="Ex: jean.dupont@example.com"
+                value={formData.email}
+                onChange={(e) => handleInputChange("email", e.target.value)}
+                disabled={isLoading}
+                required
+              />
+            </div>
+          </div>
+
+          <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+            <div className="space-y-2">
+              <Label htmlFor="password">Mot de passe *</Label>
+              <Input
+                id="password"
+                type="password"
+                placeholder="Minimum 8 caractères"
+                value={formData.password}
+                onChange={(e) => handleInputChange("password", e.target.value)}
+                disabled={isLoading}
+                required
+              />
+            </div>
+
+            <div className="space-y-2">
+              <Label htmlFor="confirmPassword">
+                Confirmer le mot de passe *
+              </Label>
+              <Input
+                id="confirmPassword"
+                type="password"
+                placeholder="Répéter le mot de passe"
+                value={formData.confirmPassword}
+                onChange={(e) =>
+                  handleInputChange("confirmPassword", e.target.value)
+                }
+                disabled={isLoading}
+                required
+              />
+            </div>
+          </div>
+
+          <div className="space-y-2">
+            <Label htmlFor="role">Rôle</Label>
+            <Select
+              value={formData.role}
+              onValueChange={(value: string) =>
+                handleInputChange("role", value)
+              }
+              disabled={isLoading}
+            >
+              <SelectTrigger>
+                <SelectValue placeholder="Sélectionner un rôle" />
+              </SelectTrigger>
+              <SelectContent>
+                <SelectItem value="USER">Utilisateur</SelectItem>
+                <SelectItem value="ADMIN">Administrateur</SelectItem>
+              </SelectContent>
+            </Select>
+          </div>
+
+          {result && (
+            <Alert variant={result.success ? "default" : "destructive"}>
+              {result.success ? (
+                <CheckCircle className="h-4 w-4" />
+              ) : (
+                <AlertCircle className="h-4 w-4" />
+              )}
+              <AlertDescription>
+                {result.message}
+                {result.success && result.user && (
+                  <div className="mt-2 text-sm">
+                    <strong>Détails:</strong>
+                    <br />• ID: {result.user.id}
+                    <br />• Email: {result.user.email}
+                    <br />• Rôle: {result.user.role}
+                    <br />• Crédits initiaux: 3,000,000 tokens
+                  </div>
+                )}
+              </AlertDescription>
+            </Alert>
+          )}
+
+          <div className="flex justify-end">
+            <Button type="submit" disabled={isLoading}>
+              {isLoading ? (
+                <>
+                  <Loader2 className="mr-2 h-4 w-4 animate-spin" />
+                  Création en cours...
+                </>
+              ) : (
+                <>
+                  <UserPlus className="mr-2 h-4 w-4" />
+                  Créer l&apos;utilisateur
+                </>
+              )}
+            </Button>
+          </div>
+        </form>
+
+        <div className="mt-6 p-4 bg-muted rounded-lg">
+          <h4 className="font-medium mb-2">Informations importantes :</h4>
+          <ul className="text-sm text-muted-foreground space-y-1">
+            <li>
+              • L&apos;utilisateur recevra automatiquement 5,000,000 tokens
+            </li>
+            <li>• Le mot de passe sera hashé de manière sécurisée</li>
+            <li>• L&apos;email doit être unique dans le système</li>
+            <li>• L&apos;utilisateur pourra se connecter immédiatement</li>
+          </ul>
+        </div>
+      </CardContent>
+    </Card>
+  );
+}

components/dashboard/dashboard-users-list.tsx

@@ -0,0 +1,246 @@
+"use client";
+
+import { useState, useEffect, useCallback } from "react";
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { Badge } from "@/components/ui/badge";
+import { Button } from "@/components/ui/button";
+import { Users } from "lucide-react";
+import Link from "next/link";
+import { useCollection } from "@/hooks/useCollection";
+import {
+  LibreChatUser,
+  LibreChatConversation,
+  LibreChatBalance,
+} from "@/lib/types";
+
+interface DashboardUser {
+  userId: string;
+  userName: string;
+  conversations: number;
+  tokens: number;
+  credits: number;
+}
+
+// Interface pour les transactions (vraie source de consommation)
+interface TransactionDocument {
+  _id: string;
+  user: unknown; // ObjectId dans MongoDB
+  rawAmount?: number;
+  tokenType?: string;
+  model?: string;
+}
+
+export function DashboardUsersList() {
+  const [topUsers, setTopUsers] = useState<DashboardUser[]>([]);
+  const [isLoading, setIsLoading] = useState(true);
+
+  // Récupérer toutes les données nécessaires
+  const { data: users, loading: usersLoading } =
+    useCollection<LibreChatUser>("users", { limit: 1000 });
+  const { data: conversations, loading: conversationsLoading } =
+    useCollection<LibreChatConversation>("conversations", { limit: 1000 });
+  const { data: balances, loading: balancesLoading } =
+    useCollection<LibreChatBalance>("balances", { limit: 1000 });
+  // Transactions = vraie source de consommation de tokens
+  const { data: transactions, loading: transactionsLoading } =
+    useCollection<TransactionDocument>("transactions", { limit: 10000 });
+
+  const processUsers = useCallback(() => {
+    if (!users?.length || !conversations?.length || !balances?.length) {
+      return;
+    }
+
+    console.log("🔄 Processing users data...");
+    console.log("Users:", users.length);
+    console.log("Conversations:", conversations.length);
+    console.log("Balances:", balances.length);
+    console.log("Transactions:", transactions?.length || 0);
+
+    const processedUsers: DashboardUser[] = [];
+
+    // Créer une map des transactions par utilisateur (user est un ObjectId, on compare en string)
+    const tokensByUser = new Map<string, number>();
+    if (transactions?.length) {
+      transactions.forEach((tx: TransactionDocument) => {
+        // tx.user est un ObjectId, on le convertit en string pour la comparaison
+        const txUserId = String(tx.user);
+        const tokens = Math.abs(tx.rawAmount || 0);
+        tokensByUser.set(txUserId, (tokensByUser.get(txUserId) || 0) + tokens);
+      });
+    }
+
+    users.forEach((user: LibreChatUser) => {
+      const userId = user._id;
+
+      // Obtenir les conversations de l'utilisateur (user dans conversations est un string)
+      const userConversations = conversations.filter(
+        (conv: LibreChatConversation) => String(conv.user) === userId
+      );
+
+      // Obtenir les tokens depuis les transactions (vraie consommation)
+      const tokensFromTransactions = tokensByUser.get(userId) || 0;
+
+      // Obtenir le balance de l'utilisateur
+      const userBalance = balances.find(
+        (balance: LibreChatBalance) => String(balance.user) === userId
+      );
+      const credits = userBalance?.tokenCredits || 0;
+
+      // Ajouter l'utilisateur s'il a consommé des tokens
+      if (tokensFromTransactions > 0) {
+        processedUsers.push({
+          userId: userId,
+          userName: user.name || user.username || user.email || "Utilisateur inconnu",
+          conversations: userConversations.length,
+          tokens: tokensFromTransactions,
+          credits: credits,
+        });
+      }
+    });
+
+    // Trier par tokens consommés (décroissant) et prendre les 5 premiers
+    const sortedUsers = processedUsers
+      .sort((a, b) => b.tokens - a.tokens)
+      .slice(0, 5);
+
+    console.log("📊 Processing summary:", {
+      totalUsers: users.length,
+      usersWithActivity: processedUsers.length,
+      top5Users: sortedUsers.length,
+    });
+    console.log("✅ Top 5 users:", sortedUsers);
+    setTopUsers(sortedUsers);
+    setIsLoading(false);
+  }, [users, conversations, balances, transactions]);
+
+  useEffect(() => {
+    const allDataLoaded =
+      !usersLoading &&
+      !conversationsLoading &&
+      !balancesLoading &&
+      !transactionsLoading;
+
+    if (allDataLoaded) {
+      processUsers();
+    } else {
+      setIsLoading(true);
+    }
+  }, [
+    usersLoading,
+    conversationsLoading,
+    balancesLoading,
+    transactionsLoading,
+    processUsers,
+  ]);
+
+  if (isLoading) {
+    return (
+      <Card>
+        <CardHeader className="flex flex-row items-center justify-between">
+          <CardTitle className="flex items-center gap-2">
+            <Users className="h-5 w-5" />
+            Top 5 utilisateurs
+          </CardTitle>
+          <Button variant="outline" size="sm" disabled>
+            Chargement...
+          </Button>
+        </CardHeader>
+        <CardContent>
+          <div className="space-y-3">
+            {[...Array(5)].map((_, i) => (
+              <div
+                key={i}
+                className="flex items-center justify-between p-3 border rounded-lg"
+              >
+                <div className="flex items-center space-x-3">
+                  <div className="w-8 h-8 bg-gray-200 rounded-full animate-pulse"></div>
+                  <div>
+                    <div className="h-4 bg-gray-200 rounded w-24 animate-pulse"></div>
+                    <div className="h-3 bg-gray-200 rounded w-16 mt-1 animate-pulse"></div>
+                  </div>
+                </div>
+                <div className="text-right">
+                  <div className="h-4 bg-gray-200 rounded w-16 animate-pulse"></div>
+                  <div className="h-3 bg-gray-200 rounded w-12 mt-1 animate-pulse"></div>
+                </div>
+              </div>
+            ))}
+          </div>
+        </CardContent>
+      </Card>
+    );
+  }
+
+  if (topUsers.length === 0) {
+    return (
+      <Card>
+        <CardHeader className="flex flex-row items-center justify-between">
+          <CardTitle className="flex items-center gap-2">
+            <Users className="h-5 w-5" />
+            Top 5 utilisateurs
+          </CardTitle>
+          <Link href="/users">
+            <Button variant="outline" size="sm">
+              Voir tous
+            </Button>
+          </Link>
+        </CardHeader>
+        <CardContent>
+          <div className="text-center py-8 text-muted-foreground">
+            Aucun utilisateur trouvé
+          </div>
+        </CardContent>
+      </Card>
+    );
+  }
+
+  return (
+    <Card>
+      <CardHeader className="flex flex-row items-center justify-between">
+        <CardTitle className="flex items-center gap-2">
+          <Users className="h-5 w-5" />
+          Top 5 utilisateurs
+        </CardTitle>
+        <Link href="/users">
+          <Button variant="outline" size="sm">
+            Voir tous
+          </Button>
+        </Link>
+      </CardHeader>
+      <CardContent>
+        <div className="space-y-3">
+          {topUsers.map((user, index) => (
+            <div
+              key={user.userId}
+              className="flex items-center justify-between p-3 border rounded-lg hover:bg-gray-50 transition-colors"
+            >
+              <div className="flex items-center space-x-3">
+                <Badge
+                  variant="secondary"
+                  className="w-6 h-6 rounded-full p-0 flex items-center justify-center text-xs"
+                >
+                  {index + 1}
+                </Badge>
+                <div>
+                  <p className="font-medium text-sm">{user.userName}</p>
+                  <p className="text-xs text-muted-foreground">
+                    {user.conversations} conversation
+                    {user.conversations !== 1 ? "s" : ""}
+                  </p>
+                </div>
+              </div>
+              <div className="text-right">
+                <p className="font-medium text-sm">
+                  {user.tokens.toLocaleString()} tokens
+                </p>
+                <p className="text-xs text-muted-foreground">
+                  {user.credits.toLocaleString()} crédits
+                </p>
+              </div>
+            </div>
+          ))}
+        </div>
+      </CardContent>
+    </Card>
+  );
+}

components/dashboard/delete-user.tsx

@@ -0,0 +1,321 @@
+"use client";
+
+import { useState } from "react";
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { Label } from "@/components/ui/label";
+import { Alert, AlertDescription } from "@/components/ui/alert";
+import { UserMinus, Loader2, CheckCircle, AlertCircle, Trash2 } from "lucide-react";
+
+interface DeleteUserResult {
+  success: boolean;
+  message: string;
+  deletedUser?: {
+    id: string;
+    name: string;
+    email: string;
+    role: string;
+  };
+  balanceDeleted?: boolean;
+  error?: string;
+}
+
+interface FoundUser {
+  _id: string;
+  name: string;
+  email: string;
+  role: string;
+  createdAt: string;
+}
+
+export default function DeleteUser() {
+  const [searchData, setSearchData] = useState({
+    email: "",
+    userId: "",
+  });
+  const [isLoading, setIsLoading] = useState(false);
+  const [result, setResult] = useState<DeleteUserResult | null>(null);
+  const [confirmDelete, setConfirmDelete] = useState(false);
+  const [foundUser, setFoundUser] = useState<FoundUser | null>(null);
+
+  const handleInputChange = (field: string, value: string) => {
+    setSearchData((prev) => ({ ...prev, [field]: value }));
+    // Réinitialiser les résultats quand l'utilisateur modifie le formulaire
+    if (result) {
+      setResult(null);
+    }
+    if (confirmDelete) {
+      setConfirmDelete(false);
+    }
+    if (foundUser) {
+      setFoundUser(null);
+    }
+  };
+
+  const validateForm = () => {
+    if (!searchData.email.trim() && !searchData.userId.trim()) {
+      return "Email ou ID utilisateur requis";
+    }
+    if (searchData.email && searchData.userId) {
+      return "Veuillez utiliser soit l'email soit l'ID, pas les deux";
+    }
+    if (searchData.email) {
+      const emailRegex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
+      if (!emailRegex.test(searchData.email)) {
+        return "Format d&apos;email invalide";
+      }
+    }
+    return null;
+  };
+
+  const handleSearch = async (e: React.FormEvent) => {
+    e.preventDefault();
+
+    const validationError = validateForm();
+    if (validationError) {
+      setResult({
+        success: false,
+        message: validationError,
+      });
+      return;
+    }
+
+    setIsLoading(true);
+    setResult(null);
+    setFoundUser(null);
+
+    try {
+      // D'abord, chercher l'utilisateur pour confirmation
+      const searchParams = new URLSearchParams();
+      if (searchData.email) {
+        searchParams.append("email", searchData.email.trim().toLowerCase());
+      }
+      if (searchData.userId) {
+        searchParams.append("id", searchData.userId.trim());
+      }
+
+      const response = await fetch(`/api/collections/users?${searchParams.toString()}`);
+      const data = await response.json();
+
+      if (response.ok && data.data && data.data.length > 0) {
+        setFoundUser(data.data[0]);
+        setResult({
+          success: true,
+          message: "Utilisateur trouvé. Confirmez la suppression ci-dessous.",
+        });
+      } else {
+        setResult({
+          success: false,
+          message: "Utilisateur non trouvé",
+        });
+      }
+    } catch (error) {
+      console.error("Erreur lors de la recherche:", error);
+      setResult({
+        success: false,
+        message: "Erreur de connexion au serveur",
+      });
+    } finally {
+      setIsLoading(false);
+    }
+  };
+
+  const handleDelete = async () => {
+    if (!foundUser) return;
+
+    setIsLoading(true);
+    setResult(null);
+
+    try {
+      const response = await fetch("/api/delete-user", {
+        method: "POST",
+        headers: {
+          "Content-Type": "application/json",
+        },
+        body: JSON.stringify({
+          userId: foundUser._id,
+        }),
+      });
+
+      const data = await response.json();
+
+      if (response.ok) {
+        setResult({
+          success: true,
+          message: data.message,
+          deletedUser: data.deletedUser,
+          balanceDeleted: data.balanceDeleted,
+        });
+        // Réinitialiser le formulaire
+        setSearchData({
+          email: "",
+          userId: "",
+        });
+        setFoundUser(null);
+        setConfirmDelete(false);
+      } else {
+        setResult({
+          success: false,
+          message: data.error || "Erreur lors de la suppression de l&apos;utilisateur",
+        });
+      }
+    } catch (error) {
+      console.error("Erreur lors de la suppression:", error);
+      setResult({
+        success: false,
+        message: "Erreur de connexion au serveur",
+      });
+    } finally {
+      setIsLoading(false);
+    }
+  };
+
+  return (
+    <Card>
+      <CardHeader>
+        <CardTitle className="flex items-center gap-2 text-red-600">
+          <UserMinus className="h-5 w-5" />
+          Supprimer un utilisateur
+        </CardTitle>
+      </CardHeader>
+      <CardContent>
+        <form onSubmit={handleSearch} className="space-y-4">
+          <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+            <div className="space-y-2">
+              <Label htmlFor="email">Adresse email</Label>
+              <Input
+                id="email"
+                type="email"
+                placeholder="Ex: jean.dupont@example.com"
+                value={searchData.email}
+                onChange={(e) => handleInputChange("email", e.target.value)}
+                disabled={isLoading || !!searchData.userId}
+              />
+            </div>
+
+            <div className="space-y-2">
+              <Label htmlFor="userId">ID Utilisateur</Label>
+              <Input
+                id="userId"
+                type="text"
+                placeholder="Ex: 507f1f77bcf86cd799439011"
+                value={searchData.userId}
+                onChange={(e) => handleInputChange("userId", e.target.value)}
+                disabled={isLoading || !!searchData.email}
+              />
+            </div>
+          </div>
+
+          {!foundUser && (
+            <div className="flex justify-end">
+              <Button type="submit" disabled={isLoading} variant="outline">
+                {isLoading ? (
+                  <>
+                    <Loader2 className="mr-2 h-4 w-4 animate-spin" />
+                    Recherche...
+                  </>
+                ) : (
+                  <>
+                    Rechercher l&apos;utilisateur
+                  </>
+                )}
+              </Button>
+            </div>
+          )}
+        </form>
+
+        {foundUser && (
+          <div className="mt-6 p-4 border rounded-lg bg-yellow-50 border-yellow-200">
+            <h4 className="font-medium mb-2 text-yellow-800">Utilisateur trouvé :</h4>
+            <div className="text-sm space-y-1 text-yellow-700">
+              <p><strong>ID:</strong> {foundUser._id}</p>
+              <p><strong>Nom:</strong> {foundUser.name}</p>
+              <p><strong>Email:</strong> {foundUser.email}</p>
+              <p><strong>Rôle:</strong> {foundUser.role}</p>
+              <p><strong>Créé le:</strong> {new Date(foundUser.createdAt).toLocaleDateString()}</p>
+            </div>
+            
+            <div className="mt-4 flex gap-2">
+              {!confirmDelete ? (
+                <Button
+                  onClick={() => setConfirmDelete(true)}
+                  variant="destructive"
+                  size="sm"
+                >
+                  <Trash2 className="mr-2 h-4 w-4" />
+                  Supprimer cet utilisateur
+                </Button>
+              ) : (
+                <div className="flex gap-2">
+                  <Button
+                    onClick={handleDelete}
+                    disabled={isLoading}
+                    variant="destructive"
+                    size="sm"
+                  >
+                    {isLoading ? (
+                      <>
+                        <Loader2 className="mr-2 h-4 w-4 animate-spin" />
+                        Suppression...
+                      </>
+                    ) : (
+                      <>
+                        <Trash2 className="mr-2 h-4 w-4" />
+                        Confirmer la suppression
+                      </>
+                    )}
+                  </Button>
+                  <Button
+                    onClick={() => setConfirmDelete(false)}
+                    variant="outline"
+                    size="sm"
+                    disabled={isLoading}
+                  >
+                    Annuler
+                  </Button>
+                </div>
+              )}
+            </div>
+          </div>
+        )}
+
+        {result && (
+          <Alert variant={result.success ? "default" : "destructive"} className="mt-4">
+            {result.success ? (
+              <CheckCircle className="h-4 w-4" />
+            ) : (
+              <AlertCircle className="h-4 w-4" />
+            )}
+            <AlertDescription>
+              {result.message}
+              {result.success && result.deletedUser && (
+                <div className="mt-2 text-sm">
+                  <strong>Utilisateur supprimé:</strong>
+                  <br />
+                  • Nom: {result.deletedUser.name}
+                  <br />
+                  • Email: {result.deletedUser.email}
+                  <br />
+                  • Rôle: {result.deletedUser.role}
+                  <br />
+                  • Solde supprimé: {result.balanceDeleted ? "Oui" : "Non"}
+                </div>
+              )}
+            </AlertDescription>
+          </Alert>
+        )}
+
+        <div className="mt-6 p-4 bg-red-50 rounded-lg border border-red-200">
+          <h4 className="font-medium mb-2 text-red-800">⚠️ Attention :</h4>
+          <ul className="text-sm text-red-700 space-y-1">
+            <li>• Cette action est irréversible</li>
+            <li>• L&apos;utilisateur et son solde seront définitivement supprimés</li>
+            <li>• Toutes les données associées seront perdues</li>
+            <li>• Utilisez cette fonction avec précaution</li>
+          </ul>
+        </div>
+      </CardContent>
+    </Card>
+  );
+}

components/dashboard/metric-cards.tsx

@@ -8,8 +8,10 @@ import {
   TrendingUp,
   TrendingDown,
   Activity,
+  Euro,
 } from "lucide-react";
 import { cn } from "@/lib/utils";
+import { convertCreditsToEuros } from "@/lib/utils/currency";
 
 interface MetricCardProps {
   title: string;
@@ -77,6 +79,9 @@ interface MetricCardsProps {
 }
 
 export function MetricCards({ metrics }: MetricCardsProps) {
+  // Conversion des crédits en euros
+  const creditsConversion = convertCreditsToEuros(metrics.totalCreditsUsed);
+
   return (
     <div className="grid gap-4 md:grid-cols-2 lg:grid-cols-4">
       <MetricCard
@@ -105,7 +110,10 @@ export function MetricCards({ metrics }: MetricCardsProps) {
           <CardTitle className="text-sm font-medium text-muted-foreground">
             Crédits totaux
           </CardTitle>
+          <div className="flex items-center gap-1">
             <CreditCard className="h-4 w-4 text-muted-foreground" />
+            <Euro className="h-4 w-4 text-green-600" />
+          </div>
         </CardHeader>
         <CardContent>
           <div className="text-2xl font-bold">
@@ -114,7 +122,22 @@ export function MetricCards({ metrics }: MetricCardsProps) {
           <p className="text-xs text-muted-foreground mt-1">
             crédits disponibles
           </p>
-          <div className="flex items-center space-x-2 text-xs text-muted-foreground mt-1">
+          
+          {/* Conversion en euros */}
+          <div className="mt-2 p-2 bg-green-50 rounded-lg border border-green-200">
+            <div className="flex items-center justify-between">
+              <span className="text-sm font-medium text-green-800">Valeur en EUR:</span>
+              <span className="text-lg font-bold text-green-600">
+                {creditsConversion.formatted.eur}
+              </span>
+            </div>
+            <div className="flex items-center justify-between text-xs text-green-600">
+              <span>USD: {creditsConversion.formatted.usd}</span>
+              <span>Taux: 1 USD = 0.92 EUR</span>
+            </div>
+          </div>
+          
+          <div className="flex items-center space-x-2 text-xs text-muted-foreground mt-2">
             <TrendingUp className="h-3 w-3 text-green-500" />
             <span className="text-green-500">+23%</span>
             <span>par rapport au mois dernier</span>

components/dashboard/overview-metrics.tsx

@@ -2,15 +2,24 @@
 
 import { useMetrics } from "@/hooks/useMetrics";
 import { MetricCard } from "@/components/ui/metric-card";
-import { Users, UserCheck, Shield, Coins, MessageSquare, FileText } from "lucide-react";
+import {
+  Users,
+  UserCheck,
+  Coins,
+  MessageSquare,
+  FileText,
+  Euro,
+  Activity,
+} from "lucide-react";
+import { convertCreditsToEuros } from "@/lib/utils/currency";
 
 export function OverviewMetrics() {
   const { metrics, loading, error } = useMetrics();
 
   if (loading) {
     return (
-      <div className="grid gap-4 md:grid-cols-2 lg:grid-cols-3">
-        {Array.from({ length: 6 }).map((_, i) => (
+      <div className="grid gap-4 md:grid-cols-2 lg:grid-cols-4">
+        {Array.from({ length: 7 }).map((_, i) => (
           <div key={i} className="h-32 bg-muted animate-pulse rounded-lg" />
         ))}
       </div>
@@ -25,38 +34,67 @@ export function OverviewMetrics() {
     );
   }
 
+  // Conversion des crédits en euros
+  const creditsInEuros = convertCreditsToEuros(metrics.totalCredits);
+
   return (
-    <div className="grid gap-4 md:grid-cols-2 lg:grid-cols-3">
-      <MetricCard
-        title="Utilisateurs totaux"
-        value={metrics.totalUsers}
-        icon={Users}
-      />
+    <div className="space-y-4">
+      {/* Ligne 1: Utilisateurs actifs, Conversations actives, Tokens consommés */}
+      <div className="grid gap-4 md:grid-cols-3">
         <MetricCard
           title="Utilisateurs actifs"
           value={metrics.activeUsers}
           icon={UserCheck}
         />
-      <MetricCard
-        title="Administrateurs"
-        value={metrics.totalAdmins}
-        icon={Shield}
-      />
-      <MetricCard
-        title="Crédits totaux"
-        value={metrics.totalCredits}
-        icon={Coins}
-      />
         <MetricCard
           title="Conversations actives"
           value={metrics.activeConversations}
           icon={MessageSquare}
         />
+        <MetricCard
+          title="Tokens consommés"
+          value={metrics.totalTokensConsumed?.toLocaleString() || "0"}
+          icon={Activity}
+          description={`${Math.round(
+            (metrics.totalTokensConsumed || 0) / (metrics.totalUsers || 1)
+          )} par utilisateur`}
+        />
+      </div>
+
+      {/* Ligne 2: Utilisateurs totaux, Messages totaux, Crédits totaux */}
+      <div className="grid gap-4 md:grid-cols-3">
+        <MetricCard
+          title="Utilisateurs totaux"
+          value={metrics.totalUsers}
+          icon={Users}
+        />
         <MetricCard
           title="Messages totaux"
           value={metrics.totalMessages}
           icon={FileText}
         />
+        <div className="bg-white rounded-lg border p-6">
+          <div className="flex items-center justify-between mb-2">
+            <h3 className="text-sm font-medium text-gray-600">Crédits totaux</h3>
+            <div className="flex items-center gap-1">
+              <Coins className="h-4 w-4 text-gray-400" />
+              <Euro className="h-4 w-4 text-green-600" />
+            </div>
+          </div>
+          <div className="text-2xl font-bold mb-1">
+            {metrics.totalCredits.toLocaleString()}
+          </div>
+          <div className="text-sm text-gray-500 mb-2">crédits disponibles</div>
+          <div className="p-2 bg-green-50 rounded border border-green-200">
+            <div className="text-sm font-semibold text-green-800">
+              {creditsInEuros.formatted.eur}
+            </div>
+            <div className="text-xs text-green-600">
+              {creditsInEuros.formatted.usd} USD
+            </div>
+          </div>
+        </div>
+      </div>
     </div>
   );
 }

components/dashboard/real-time-stats.tsx

@@ -1,17 +1,23 @@
 "use client";
 
 import { Card, CardContent } from "@/components/ui/card";
+import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
 import { useStats } from "@/hooks/useStats";
 import { SimpleStatsChart } from "./charts/simple-stats-chart";
+import { UserConnectionsChart } from "./charts/user-connections-chart";
 import { ModelDistributionChart } from "./charts/model-distribution-chart";
 import { AlertCircle } from "lucide-react";
 
 export function RealTimeStats() {
   const { stats, loading, error } = useStats();
   
+  console.log("RealTimeStats - stats:", stats);
+  console.log("RealTimeStats - loading:", loading);
+  console.log("RealTimeStats - error:", error);
+
   if (loading) {
     return (
-      <div className="grid gap-6 md:grid-cols-2">
+      <div className="space-y-6">
         <div className="h-64 bg-muted animate-pulse rounded-lg" />
         <div className="h-64 bg-muted animate-pulse rounded-lg" />
       </div>
@@ -20,7 +26,7 @@ export function RealTimeStats() {
 
   if (error) {
     return (
-      <div className="grid gap-6 md:grid-cols-2">
+      <div className="space-y-6">
         <Card>
           <CardContent className="flex items-center justify-center h-64">
             <div className="text-center">
@@ -47,7 +53,7 @@ export function RealTimeStats() {
 
   if (!stats) {
     return (
-      <div className="grid gap-6 md:grid-cols-2">
+      <div className="space-y-6">
         <Card>
           <CardContent className="flex items-center justify-center h-64">
             <p className="text-sm text-muted-foreground">
@@ -67,7 +73,25 @@ export function RealTimeStats() {
   }
 
   return (
-    <div className="grid gap-6 md:grid-cols-2">
+    <Tabs defaultValue="connections" className="space-y-6">
+      <TabsList className="grid w-full grid-cols-2">
+        <TabsTrigger value="connections">Nombre de connexions par utilisateur/par jour</TabsTrigger>
+        <TabsTrigger value="tokens">Tokens consommés par jour</TabsTrigger>
+      </TabsList>
+      
+      <TabsContent value="connections" className="space-y-6">
+        <UserConnectionsChart
+          title="Nombre de connexions par utilisateur/par jour"
+          data={stats.dailyConnections || []}
+          color="hsl(var(--chart-2))"
+        />
+        <ModelDistributionChart
+          title="Répartition par modèle"
+          data={stats.modelDistribution}
+        />
+      </TabsContent>
+      
+      <TabsContent value="tokens" className="space-y-6">
         <SimpleStatsChart
           title="Tokens consommés par jour"
           data={stats.dailyTokens}
@@ -77,6 +101,7 @@ export function RealTimeStats() {
           title="Répartition par modèle"
           data={stats.modelDistribution}
         />
-    </div>
+      </TabsContent>
+    </Tabs>
   );
 }

components/dashboard/usage-analytics.tsx

@@ -3,8 +3,9 @@
 import { useState, useEffect, useCallback } from "react";
 import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
 import { Badge } from "@/components/ui/badge";
-import { Users, MessageSquare, DollarSign, Activity } from "lucide-react";
+import { Users, MessageSquare, DollarSign, Activity, Euro } from "lucide-react";
 import { useCollection } from "@/hooks/useCollection";
+import { convertCreditsToEuros } from "@/lib/utils/currency";
 
 import {
   LibreChatUser,
@@ -36,7 +37,7 @@ export function UsageAnalytics() {
 
   const { data: users = [] } = useCollection<LibreChatUser>("users", { limit: 1000 });
   const { data: conversations = [] } = useCollection<LibreChatConversation>("conversations", { limit: 1000 });
-  const { data: transactions = [] } = useCollection<LibreChatTransaction>("transactions", { limit: 1000 });
+  const { data: transactions = [] } = useCollection<LibreChatTransaction>("transactions", { limit: 10000 });
   const { data: balances = [] } = useCollection<LibreChatBalance>("balances", { limit: 1000 });
 
   const calculateStats = useCallback(() => {
@@ -46,24 +47,20 @@ export function UsageAnalytics() {
 
     setLoading(true);
 
-    // Console log pour débugger les données balances
-    console.log("=== DONNÉES BALANCES RÉCUPÉRÉES ===");
-    console.log("Nombre total d'entrées balances:", balances.length);
-    console.log("Toutes les entrées balances:", balances);
+    console.log("=== CALCUL DES STATISTIQUES ===");
+    console.log("Utilisateurs:", users.length);
+    console.log("Conversations:", conversations.length);
+    console.log("Transactions:", transactions.length);
+    console.log("Balances:", balances.length);
 
-    // NOUVEAU : Console log pour débugger les utilisateurs
-    console.log("=== DONNÉES UTILISATEURS ===");
-    console.log("Nombre total d'utilisateurs:", users.length);
-    console.log("Premiers 5 utilisateurs:", users.slice(0, 5));
-    
-    // Analyser les doublons
+    // Analyser les doublons dans les balances
     const userCounts = new Map<string, number>();
-    balances.forEach(balance => {
-      const userId = balance.user;
+    balances.forEach((balance) => {
+      const userId = String(balance.user);
       userCounts.set(userId, (userCounts.get(userId) || 0) + 1);
     });
 
-    const duplicateUsers = Array.from(userCounts.entries()).filter(([_, count]) => count > 1);
+    const duplicateUsers = Array.from(userCounts.entries()).filter(([, count]) => count > 1);
     console.log("Utilisateurs avec plusieurs entrées:", duplicateUsers);
     
     // Afficher quelques exemples d'entrées
@@ -73,10 +70,33 @@ export function UsageAnalytics() {
     const totalBrut = balances.reduce((sum, balance) => sum + (balance.tokenCredits || 0), 0);
     console.log("Total brut (avec doublons potentiels):", totalBrut);
 
+    // Ajouter des logs détaillés pour comprendre le problème
+    console.log("=== DIAGNOSTIC DÉTAILLÉ ===");
+    
+    // Analyser les doublons
+    const duplicateDetails = Array.from(userCounts.entries())
+      .filter(([, count]) => count > 1)
+      .map(([userId, count]) => {
+        const userBalances = balances.filter(b => String(b.user) === userId);
+        const totalCredits = userBalances.reduce((sum, b) => sum + (b.tokenCredits || 0), 0);
+        return {
+          userId,
+          count,
+          totalCredits,
+          balances: userBalances.map(b => ({
+            credits: b.tokenCredits,
+            createdAt: b.createdAt,
+            updatedAt: b.updatedAt
+          }))
+        };
+      });
+    
+    console.log("Détails des doublons:", duplicateDetails);
+
     // NOUVEAU : Identifier les utilisateurs fantômes
     console.log("=== ANALYSE DES UTILISATEURS FANTÔMES ===");
     const userIds = new Set(users.map(user => user._id));
-    const balanceUserIds = balances.map(balance => balance.user);
+    const balanceUserIds = balances.map(balance => String(balance.user));
     const phantomUsers = balanceUserIds.filter(userId => !userIds.has(userId));
     const uniquePhantomUsers = [...new Set(phantomUsers)];
     
@@ -85,46 +105,63 @@ export function UsageAnalytics() {
     
     // Calculer les crédits des utilisateurs fantômes
     const phantomCredits = balances
-      .filter(balance => uniquePhantomUsers.includes(balance.user))
+      .filter(balance => uniquePhantomUsers.includes(String(balance.user)))
       .reduce((sum, balance) => sum + (balance.tokenCredits || 0), 0);
     
     console.log("Crédits des utilisateurs fantômes:", phantomCredits);
     console.log("Crédits des vrais utilisateurs:", totalBrut - phantomCredits);
     
-    // Calculer les utilisateurs actifs (5 dernières minutes)
-    const fiveMinutesAgo = new Date();
-    fiveMinutesAgo.setMinutes(fiveMinutesAgo.getMinutes() - 5);
+    // Analyser les utilisateurs fantômes
+    const phantomDetails = uniquePhantomUsers.map(userId => {
+      const userBalances = balances.filter(b => String(b.user) === userId);
+      const totalCredits = userBalances.reduce((sum, b) => sum + (b.tokenCredits || 0), 0);
+      return { userId, totalCredits, count: userBalances.length };
+    });
+    
+    console.log("Détails des utilisateurs fantômes:", phantomDetails);
+
+    // Calculer les utilisateurs actifs (30 derniers jours)
+    const thirtyDaysAgo = new Date();
+    thirtyDaysAgo.setDate(thirtyDaysAgo.getDate() - 30);
     const activeUsers = users.filter((user) => {
       const lastActivity = new Date(user.updatedAt || user.createdAt);
-      return lastActivity >= fiveMinutesAgo;
+      return lastActivity >= thirtyDaysAgo;
     }).length;
 
-    // CORRECTION : Créer une map des crédits par utilisateur en évitant les doublons
+    // CORRECTION AMÉLIORÉE : Créer une map des crédits par utilisateur
     const creditsMap = new Map<string, number>();
     
     // Grouper les balances par utilisateur
     const balancesByUser = new Map<string, LibreChatBalance[]>();
     balances.forEach((balance) => {
-      const userId = balance.user;
-      if (!balancesByUser.has(userId)) {
-        balancesByUser.set(userId, []);
+      const balanceUserId = String(balance.user);
+      // Ignorer les utilisateurs fantômes (qui n'existent plus)
+      if (users.some(user => user._id === balanceUserId)) {
+        if (!balancesByUser.has(balanceUserId)) {
+          balancesByUser.set(balanceUserId, []);
+        }
+        balancesByUser.get(balanceUserId)!.push(balance);
       }
-      balancesByUser.get(userId)!.push(balance);
     });
 
-    // Pour chaque utilisateur, prendre seulement la dernière entrée
+    // Pour chaque utilisateur, calculer les crédits selon votre logique métier
     balancesByUser.forEach((userBalances, userId) => {
       if (userBalances.length > 0) {
-        // Trier par date de mise à jour (plus récent en premier)
+        // OPTION A: Prendre la balance la plus récente
         const sortedBalances = userBalances.sort((a, b) => {
           const aDate = new Date((a.updatedAt as string) || (a.createdAt as string) || 0);
           const bDate = new Date((b.updatedAt as string) || (b.createdAt as string) || 0);
           return bDate.getTime() - aDate.getTime();
         });
+        creditsMap.set(userId, sortedBalances[0].tokenCredits || 0);
         
-        // Prendre la plus récente
-        const latestBalance = sortedBalances[0];
-        creditsMap.set(userId, latestBalance.tokenCredits || 0);
+        // OPTION B: Sommer toutes les balances (si c'est votre logique)
+        // const totalCredits = userBalances.reduce((sum, balance) => sum + (balance.tokenCredits || 0), 0);
+        // creditsMap.set(userId, totalCredits);
+        
+        // OPTION C: Prendre la balance avec le plus de crédits
+        // const maxCredits = Math.max(...userBalances.map(b => b.tokenCredits || 0));
+        // creditsMap.set(userId, maxCredits);
       }
     });
 
@@ -149,17 +186,19 @@ export function UsageAnalytics() {
     });
 
     // Calculer les conversations par utilisateur
+    // conv.user est un STRING
     conversations.forEach((conv) => {
-      const userStat = userStats.get(conv.user);
+      const userStat = userStats.get(String(conv.user));
       if (userStat) {
         userStat.conversations++;
       }
     });
 
     // Calculer les tokens par utilisateur depuis les transactions
+    // transaction.user est un ObjectId, on le convertit en string
     let totalTokensConsumed = 0;
     transactions.forEach((transaction) => {
-      const userStat = userStats.get(transaction.user);
+      const userStat = userStats.get(String(transaction.user));
       if (userStat && transaction.rawAmount) {
         const tokens = Math.abs(Number(transaction.rawAmount) || 0);
         userStat.tokens += tokens;
@@ -167,12 +206,16 @@ export function UsageAnalytics() {
       }
     });
 
-    // CORRECTION : Calculer le total des crédits depuis la map corrigée
+    // Calculer le total des crédits depuis la map corrigée (sans doublons ni fantômes)
     const totalCreditsUsed = Array.from(creditsMap.values()).reduce(
       (sum, credits) => sum + credits,
       0
     );
 
+    console.log("=== RÉSULTATS CORRIGÉS ===");
+    console.log("Crédits totaux (sans doublons ni fantômes):", totalCreditsUsed);
+    console.log("Utilisateurs avec crédits:", creditsMap.size);
+
     // Tous les utilisateurs triés par tokens puis conversations
     const allUsers = Array.from(userStats.entries())
       .map(([userId, stats]) => ({
@@ -242,7 +285,7 @@ export function UsageAnalytics() {
           <CardContent>
             <div className="text-2xl font-bold">{stats.totalUsers}</div>
             <p className="text-xs text-muted-foreground">
-              {stats.activeUsers} actifs cette semaine
+              {stats.activeUsers} actifs ce mois
             </p>
           </CardContent>
         </Card>
@@ -282,13 +325,26 @@ export function UsageAnalytics() {
             <CardTitle className="text-sm font-medium">
               Crédits totaux
             </CardTitle>
+            <div className="flex items-center gap-1">
               <DollarSign className="h-4 w-4 text-muted-foreground" />
+              <Euro className="h-4 w-4 text-green-600" />
+            </div>
           </CardHeader>
           <CardContent>
             <div className="text-2xl font-bold">
               {stats.totalCreditsUsed.toLocaleString()}
             </div>
             <p className="text-xs text-muted-foreground">crédits disponibles</p>
+            
+            {/* Conversion en euros */}
+            <div className="mt-2 p-2 bg-green-50 rounded-lg border border-green-200">
+              <div className="text-sm font-medium text-green-800">
+                Valeur: {convertCreditsToEuros(stats.totalCreditsUsed).formatted.eur}
+              </div>
+              <div className="text-xs text-green-600">
+                ({convertCreditsToEuros(stats.totalCreditsUsed).formatted.usd} USD)
+              </div>
+            </div>
           </CardContent>
         </Card>
       </div>

components/dashboard/user-management.tsx

@@ -0,0 +1,56 @@
+"use client";
+
+import { UserPlus, UserMinus, Users } from "lucide-react";
+import {
+  Accordion,
+  AccordionContent,
+  AccordionItem,
+  AccordionTrigger,
+} from "@/components/ui/accordion";
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import CreateUser from "./create-user";
+import DeleteUser from "./delete-user";
+
+export default function UserManagement() {
+  return (
+    <Card>
+      <CardHeader>
+        <CardTitle className="flex items-center gap-2">
+          <Users className="h-6 w-6" />
+          Gestion des Utilisateurs
+        </CardTitle>
+      </CardHeader>
+      <CardContent>
+        <Accordion type="single" collapsible className="w-full">
+          <AccordionItem value="create-user">
+            <AccordionTrigger className="text-left">
+              <div className="flex items-center gap-2">
+                <UserPlus className="h-5 w-5 text-green-600" />
+                <span>Créer un nouvel utilisateur</span>
+              </div>
+            </AccordionTrigger>
+            <AccordionContent>
+              <div className="pt-4">
+                <CreateUser />
+              </div>
+            </AccordionContent>
+          </AccordionItem>
+
+          <AccordionItem value="delete-user">
+            <AccordionTrigger className="text-left">
+              <div className="flex items-center gap-2">
+                <UserMinus className="h-5 w-5 text-red-600" />
+                <span>Supprimer un utilisateur</span>
+              </div>
+            </AccordionTrigger>
+            <AccordionContent>
+              <div className="pt-4">
+                <DeleteUser />
+              </div>
+            </AccordionContent>
+          </AccordionItem>
+        </Accordion>
+      </CardContent>
+    </Card>
+  );
+}

components/layout/sidebar.tsx

@@ -1,12 +1,11 @@
 "use client";
 
-import { useState } from "react";
+import { useState, useEffect } from "react";
 import Link from "next/link";
-import { usePathname } from "next/navigation";
+import { usePathname, useRouter } from "next/navigation";
 import { cn } from "@/lib/utils";
 import { Button } from "@/components/ui/button";
-import { Badge } from "@/components/ui/badge";
-import { Separator } from "@/components/ui/separator";
+import { createClient } from "@/lib/supabase/client";
 import Image from "next/image";
 import {
   LayoutDashboard,
@@ -20,136 +19,165 @@ import {
   Bot,
   ChevronLeft,
   ChevronRight,
-  BarChart3,
-  Activity,
+  LogOut,
+  User,
+  Mail,
+  GraduationCap,
 } from "lucide-react";
+import type { User as SupabaseUser } from "@supabase/supabase-js";
 
-interface NavigationItem {
-  name: string;
-  href: string;
-  icon: React.ElementType;
-  badge?: string | null;
-}
-
-const navigation: NavigationItem[] = [
-  {
-    name: "Vue d'ensemble",
-    href: "/",
-    icon: LayoutDashboard,
-    badge: null,
-  },
+const topLevelNavigation = [
   {
     name: "Analytics",
-    href: "/analytics",
-    icon: BarChart3,
-    badge: "Nouveau",
+    href: "/",
+    icon: LayoutDashboard,
   },
 ];
 
-const dataNavigation: NavigationItem[] = [
-  { name: "Utilisateurs", href: "/users", icon: Users, badge: null },
+const navigationGroups = [
+  {
+    name: "Données",
+    items: [
       {
         name: "Conversations",
         href: "/conversations",
         icon: MessageSquare,
-    badge: null,
       },
-  { name: "Messages", href: "/messages", icon: FileText, badge: null },
+      {
+        name: "Utilisateurs",
+        href: "/users",
+        icon: Users,
+      },
+      {
+        name: "Messages",
+        href: "/messages",
+        icon: FileText,
+      },
       {
         name: "Transactions",
         href: "/transactions",
         icon: CreditCard,
-    badge: null,
+      },
+      {
+        name: "Groupes",
+        href: "/referents",
+        icon: GraduationCap,
+      },
+    ],
+  },
+  {
+    name: "Système",
+    items: [
+      {
+        name: "Collections",
+        href: "/collections",
+        icon: Database,
+      },
+      {
+        name: "Agents",
+        href: "/agents",
+        icon: Bot,
+      },
+      {
+        name: "Rôles",
+        href: "/roles",
+        icon: Shield,
+      },
+      {
+        name: "Paramètres",
+        href: "/settings",
+        icon: Settings,
+      },
+    ],
   },
 ];
 
-const systemNavigation: NavigationItem[] = [
-  { name: "Agents", href: "/agents", icon: Bot, badge: null },
-  { name: "Rôles", href: "/roles", icon: Shield, badge: null },
-  { name: "Collections", href: "/collections", icon: Database, badge: null },
-  { name: "Paramètres", href: "/settings", icon: Settings, badge: null },
-];
-
 export function Sidebar() {
-  const [collapsed, setCollapsed] = useState(false);
   const pathname = usePathname();
+  const router = useRouter();
+  const [collapsed, setCollapsed] = useState(false);
+  const [user, setUser] = useState<SupabaseUser | null>(null);
+  const [loading, setLoading] = useState(true);
+  const supabase = createClient();
 
-  const NavSection = ({
-    title,
-    items,
-    showTitle = true,
-  }: {
-    title: string;
-    items: NavigationItem[];
-    showTitle?: boolean;
-  }) => (
-    <div className="space-y-2">
-      {!collapsed && showTitle && (
-        <h3 className="px-3 text-xs font-semibold text-muted-foreground uppercase tracking-wider">
-          {title}
-        </h3>
-      )}
-      {items.map((item) => {
-        const isActive = pathname === item.href;
-        return (
-          <Link key={item.name} href={item.href}>
-            <Button
-              variant={isActive ? "secondary" : "ghost"}
-              className={cn(
-                "w-full justify-start h-9 px-3",
-                collapsed && "px-2 justify-center",
-                isActive && "bg-secondary font-medium"
-              )}
-            >
-              <item.icon className={cn("h-4 w-4", collapsed ? "" : "mr-3")} />
-              {!collapsed && (
-                <div className="flex items-center justify-between w-full">
-                  <span>{item.name}</span>
-                  {item.badge && (
-                    <Badge variant="secondary" className="text-xs">
-                      {item.badge}
-                    </Badge>
-                  )}
-                </div>
-              )}
-            </Button>
-          </Link>
-        );
-      })}
-    </div>
+  useEffect(() => {
+    const getUser = async () => {
+      try {
+        const {
+          data: { user },
+        } = await supabase.auth.getUser();
+        setUser(user);
+      } catch (error) {
+        console.error(
+          "Erreur lors de la récupération de l'utilisateur:",
+          error
         );
+        setUser(null);
+      } finally {
+        setLoading(false);
+      }
+    };
+
+    getUser();
+
+    // Écouter les changements d'authentification
+    const {
+      data: { subscription },
+    } = supabase.auth.onAuthStateChange((event, session) => {
+      setUser(session?.user || null);
+      setLoading(false);
+    });
+
+    return () => subscription.unsubscribe();
+  }, [supabase.auth]);
+
+  const handleLogout = async () => {
+    try {
+      await supabase.auth.signOut();
+      router.push("/login");
+      router.refresh();
+    } catch (error) {
+      console.error("Erreur lors de la déconnexion:", error);
+    }
+  };
+
+  // Ne pas afficher la sidebar si l'utilisateur n'est pas connecté ou en cours de chargement
+  if (loading || !user) {
+    return null;
+  }
 
   return (
     <div
       className={cn(
-        "flex flex-col h-screen bg-background border-r border-border transition-all duration-300 ease-in-out",
+        "flex flex-col h-screen bg-white border-r border-gray-200 transition-all duration-300",
         collapsed ? "w-16" : "w-64"
       )}
     >
       {/* Header */}
-      <div className="flex items-center justify-between p-4 border-b border-border">
+      <div className="flex items-center justify-between p-4 border-b border-gray-200 flex-shrink-0">
         {!collapsed && (
-          <div className="flex items-center space-x-2">
-            <div className="w-8 h-8 rounded-lg flex items-center justify-center">
+          <div className="flex items-center space-x-3">
+            <div className="relative w-8 h-8">
               <Image
                 src="/img/logo.png"
-                alt="Cercle GPT Logo"
-                width={32}
-                height={32}
-                className="rounded-lg"
+                alt="Logo"
+                fill
+                className="object-contain"
               />
             </div>
             <div>
-              <h1 className="text-sm font-semibold">Cercle GPT</h1>
-              <p className="text-xs text-muted-foreground">Admin Dashboard</p>
+              <h1 className="text-lg font-semibold text-gray-900">
+                Cercle GPT
+              </h1>
+              <p className="text-xs text-gray-500">Admin Dashboard</p>
             </div>
           </div>
         )}
         <Button
           variant="ghost"
-          size="icon"
+          size="sm"
           onClick={() => setCollapsed(!collapsed)}
-          className="h-8 w-8"
+          className="p-1.5 hover:bg-gray-100"
         >
           {collapsed ? (
             <ChevronRight className="h-4 w-4" />
@@ -160,32 +188,112 @@ export function Sidebar() {
       </div>
 
       {/* Navigation */}
-      <nav className="flex-1 p-3 space-y-6 overflow-y-auto">
-        <NavSection title="Dashboard" items={navigation} showTitle={false} />
+      <nav className="flex-1 p-4 space-y-6 overflow-y-auto">
+        {/* Navigation de niveau supérieur */}
+        <div className="space-y-1">
+          {topLevelNavigation.map((item) => {
+            const isActive = pathname === item.href;
+            return (
+              <Link
+                key={item.name}
+                href={item.href}
+                className={cn(
+                  "flex items-center space-x-3 px-3 py-2 rounded-md text-sm font-medium transition-colors",
+                  isActive
+                    ? "bg-gray-900 text-white"
+                    : "text-gray-700 hover:bg-gray-100 hover:text-gray-900"
+                )}
+              >
+                <item.icon className="h-5 w-5 flex-shrink-0" />
+                {!collapsed && <span>{item.name}</span>}
+              </Link>
+            );
+          })}
+        </div>
 
-        {!collapsed && <Separator />}
+        {/* Séparateur */}
+        <div className="border-t border-gray-200"></div>
 
-        <NavSection title="Données" items={dataNavigation} />
+        {/* Groupes de navigation */}
+        {navigationGroups.map((group) => (
+          <div key={group.name}>
+            {/* Titre du groupe */}
+            {!collapsed && (
+              <h3 className="px-3 mb-2 text-xs font-semibold text-gray-500 uppercase tracking-wider">
+                {group.name}
+              </h3>
+            )}
 
-        {!collapsed && <Separator />}
+            {/* Séparateur visuel quand collapsed */}
+            {collapsed && (
+              <div className="mb-2 mx-auto w-8 h-px bg-gray-300"></div>
+            )}
 
-        <NavSection title="Système" items={systemNavigation} />
+            {/* Items du groupe */}
+            <div className="space-y-1">
+              {group.items.map((item) => {
+                const isActive = pathname === item.href;
+                return (
+                  <Link
+                    key={item.name}
+                    href={item.href}
+                    className={cn(
+                      "flex items-center space-x-3 px-3 py-2 rounded-md text-sm font-medium transition-colors",
+                      isActive
+                        ? "bg-gray-900 text-white"
+                        : "text-gray-700 hover:bg-gray-100 hover:text-gray-900"
+                    )}
+                  >
+                    <item.icon className="h-5 w-5 flex-shrink-0" />
+                    {!collapsed && <span>{item.name}</span>}
+                  </Link>
+                );
+              })}
+            </div>
+          </div>
+        ))}
       </nav>
 
-      {/* Footer */}
+      {/* Section utilisateur connecté */}
+      <div className="p-4 border-t border-gray-200 space-y-3 flex-shrink-0 bg-white">
+        {/* Informations utilisateur */}
+        <div
+          className={cn(
+            "flex items-center space-x-3 px-3 py-2 bg-gray-50 rounded-md",
+            collapsed && "justify-center"
+          )}
+        >
+          <div className="flex-shrink-0">
+            <div className="w-8 h-8 bg-gray-200 rounded-full flex items-center justify-center">
+              <User className="h-4 w-4 text-gray-600" />
+            </div>
+          </div>
           {!collapsed && (
-        <div className="p-3 border-t border-border">
-          <div className="flex items-center space-x-3 p-2 rounded-lg bg-muted/50">
-            <div className="w-8 h-8 bg-primary/10 rounded-full flex items-center justify-center">
-              <Activity className="h-4 w-4 text-primary" />
-            </div>
             <div className="flex-1 min-w-0">
-              <p className="text-xs font-medium">Système en ligne</p>
-              <p className="text-xs text-muted-foreground">Tout fonctionne</p>
-            </div>
+              <p className="text-sm font-medium text-gray-900 truncate">
+                Administrateur
+              </p>
+              <div className="flex items-center space-x-1">
+                <Mail className="h-3 w-3 text-gray-400" />
+                <p className="text-xs text-gray-500 truncate">{user.email}</p>
               </div>
             </div>
           )}
         </div>
+
+        {/* Bouton de déconnexion */}
+        <Button
+          variant="outline"
+          onClick={handleLogout}
+          className={cn(
+            "w-full flex items-center space-x-2 text-sm font-medium border-gray-200 hover:bg-gray-50",
+            collapsed && "justify-center px-2"
+          )}
+        >
+          <LogOut className="h-4 w-4" />
+          {!collapsed && <span>Déconnexion</span>}
+        </Button>
+      </div>
+    </div>
   );
 }

components/providers/query-provider.tsx

@@ -0,0 +1,24 @@
+"use client";
+
+import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
+import { useState } from "react";
+
+export function QueryProvider({ children }: { children: React.ReactNode }) {
+  const [queryClient] = useState(
+    () =>
+      new QueryClient({
+        defaultOptions: {
+          queries: {
+            staleTime: 1000 * 60, // 1 minute
+            gcTime: 1000 * 60 * 5, // 5 minutes (anciennement cacheTime)
+            refetchOnWindowFocus: false,
+            retry: 1,
+          },
+        },
+      })
+  );
+
+  return (
+    <QueryClientProvider client={queryClient}>{children}</QueryClientProvider>
+  );
+}

components/ui/accordion.tsx

@@ -0,0 +1,58 @@
+"use client";
+
+import * as React from "react";
+import * as AccordionPrimitive from "@radix-ui/react-accordion";
+import { ChevronDown } from "lucide-react";
+
+import { cn } from "@/lib/utils";
+
+const Accordion = AccordionPrimitive.Root;
+
+const AccordionItem = React.forwardRef<
+  React.ElementRef<typeof AccordionPrimitive.Item>,
+  React.ComponentPropsWithoutRef<typeof AccordionPrimitive.Item>
+>(({ className, ...props }, ref) => (
+  <AccordionPrimitive.Item
+    ref={ref}
+    className={cn("border-b", className)}
+    {...props}
+  />
+));
+AccordionItem.displayName = "AccordionItem";
+
+const AccordionTrigger = React.forwardRef<
+  React.ElementRef<typeof AccordionPrimitive.Trigger>,
+  React.ComponentPropsWithoutRef<typeof AccordionPrimitive.Trigger>
+>(({ className, children, ...props }, ref) => (
+  <AccordionPrimitive.Header className="flex">
+    <AccordionPrimitive.Trigger
+      ref={ref}
+      className={cn(
+        "flex flex-1 items-center justify-between py-4 font-medium transition-all hover:underline [&[data-state=open]>svg]:rotate-180",
+        className
+      )}
+      {...props}
+    >
+      {children}
+      <ChevronDown className="h-4 w-4 shrink-0 transition-transform duration-200" />
+    </AccordionPrimitive.Trigger>
+  </AccordionPrimitive.Header>
+));
+AccordionTrigger.displayName = AccordionPrimitive.Trigger.displayName;
+
+const AccordionContent = React.forwardRef<
+  React.ElementRef<typeof AccordionPrimitive.Content>,
+  React.ComponentPropsWithoutRef<typeof AccordionPrimitive.Content>
+>(({ className, children, ...props }, ref) => (
+  <AccordionPrimitive.Content
+    ref={ref}
+    className="overflow-hidden text-sm transition-all data-[state=closed]:animate-accordion-up data-[state=open]:animate-accordion-down"
+    {...props}
+  >
+    <div className={cn("pb-4 pt-0", className)}>{children}</div>
+  </AccordionPrimitive.Content>
+));
+
+AccordionContent.displayName = AccordionPrimitive.Content.displayName;
+
+export { Accordion, AccordionItem, AccordionTrigger, AccordionContent };

components/ui/alert.tsx

@@ -0,0 +1,46 @@
+import * as React from "react"
+import { cva, type VariantProps } from "class-variance-authority"
+import { cn } from "@/lib/utils"
+
+const alertVariants = cva(
+  "relative w-full rounded-lg border p-4 [&>svg~*]:pl-7 [&>svg+div]:translate-y-[-3px] [&>svg]:absolute [&>svg]:left-4 [&>svg]:top-4 [&>svg]:text-foreground",
+  {
+    variants: {
+      variant: {
+        default: "bg-background text-foreground",
+        destructive:
+          "border-destructive/50 text-destructive dark:border-destructive [&>svg]:text-destructive",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+    },
+  }
+)
+
+const Alert = React.forwardRef<
+  HTMLDivElement,
+  React.HTMLAttributes<HTMLDivElement> & VariantProps<typeof alertVariants>
+>(({ className, variant, ...props }, ref) => (
+  <div
+    ref={ref}
+    role="alert"
+    className={cn(alertVariants({ variant }), className)}
+    {...props}
+  />
+))
+Alert.displayName = "Alert"
+
+const AlertDescription = React.forwardRef<
+  HTMLParagraphElement,
+  React.HTMLAttributes<HTMLParagraphElement>
+>(({ className, ...props }, ref) => (
+  <div
+    ref={ref}
+    className={cn("text-sm [&_p]:leading-relaxed", className)}
+    {...props}
+  />
+))
+AlertDescription.displayName = "AlertDescription"
+
+export { Alert, AlertDescription }

components/ui/label.tsx

@@ -0,0 +1,26 @@
+"use client"
+
+import * as React from "react"
+import * as LabelPrimitive from "@radix-ui/react-label"
+import { cva, type VariantProps } from "class-variance-authority"
+
+import { cn } from "@/lib/utils"
+
+const labelVariants = cva(
+  "text-sm font-medium leading-none peer-disabled:cursor-not-allowed peer-disabled:opacity-70"
+)
+
+const Label = React.forwardRef<
+  React.ElementRef<typeof LabelPrimitive.Root>,
+  React.ComponentPropsWithoutRef<typeof LabelPrimitive.Root> &
+    VariantProps<typeof labelVariants>
+>(({ className, ...props }, ref) => (
+  <LabelPrimitive.Root
+    ref={ref}
+    className={cn(labelVariants(), className)}
+    {...props}
+  />
+))
+Label.displayName = LabelPrimitive.Root.displayName
+
+export { Label }

components/ui/metric-card.tsx

@@ -7,6 +7,7 @@ interface MetricCardProps {
   title: string;
   value: number | string;
   icon: LucideIcon;
+  description?: string;
   trend?: {
     value: number;
     isPositive: boolean;
@@ -18,6 +19,7 @@ export function MetricCard({
   title, 
   value, 
   icon: Icon, 
+  description,
   trend, 
   className 
 }: MetricCardProps) {
@@ -33,6 +35,11 @@ export function MetricCard({
         <div className="text-2xl font-bold">
           {typeof value === 'number' ? formatNumber(value) : value}
         </div>
+        {description && (
+          <p className="text-xs text-muted-foreground mt-1">
+            {description}
+          </p>
+        )}
         {trend && (
           <Badge 
             variant={trend.isPositive ? "default" : "destructive"}

components/ui/select.tsx

@@ -0,0 +1,160 @@
+"use client";
+
+import * as React from "react";
+import * as SelectPrimitive from "@radix-ui/react-select";
+import { Check, ChevronDown, ChevronUp } from "lucide-react";
+
+import { cn } from "@/lib/utils";
+
+const Select = SelectPrimitive.Root;
+
+const SelectGroup = SelectPrimitive.Group;
+
+const SelectValue = SelectPrimitive.Value;
+
+const SelectTrigger = React.forwardRef<
+  React.ElementRef<typeof SelectPrimitive.Trigger>,
+  React.ComponentPropsWithoutRef<typeof SelectPrimitive.Trigger>
+>(({ className, children, ...props }, ref) => (
+  <SelectPrimitive.Trigger
+    ref={ref}
+    className={cn(
+      "flex h-10 w-full items-center justify-between rounded-md border border-input bg-background px-3 py-2 text-sm ring-offset-background placeholder:text-muted-foreground focus:outline-none focus:ring-2 focus:ring-ring focus:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50 [&>span]:line-clamp-1",
+      className
+    )}
+    {...props}
+  >
+    {children}
+    <SelectPrimitive.Icon asChild>
+      <ChevronDown className="h-4 w-4 opacity-50" />
+    </SelectPrimitive.Icon>
+  </SelectPrimitive.Trigger>
+));
+SelectTrigger.displayName = SelectPrimitive.Trigger.displayName;
+
+const SelectScrollUpButton = React.forwardRef<
+  React.ElementRef<typeof SelectPrimitive.ScrollUpButton>,
+  React.ComponentPropsWithoutRef<typeof SelectPrimitive.ScrollUpButton>
+>(({ className, ...props }, ref) => (
+  <SelectPrimitive.ScrollUpButton
+    ref={ref}
+    className={cn(
+      "flex cursor-default items-center justify-center py-1",
+      className
+    )}
+    {...props}
+  >
+    <ChevronUp className="h-4 w-4" />
+  </SelectPrimitive.ScrollUpButton>
+));
+SelectScrollUpButton.displayName = SelectPrimitive.ScrollUpButton.displayName;
+
+const SelectScrollDownButton = React.forwardRef<
+  React.ElementRef<typeof SelectPrimitive.ScrollDownButton>,
+  React.ComponentPropsWithoutRef<typeof SelectPrimitive.ScrollDownButton>
+>(({ className, ...props }, ref) => (
+  <SelectPrimitive.ScrollDownButton
+    ref={ref}
+    className={cn(
+      "flex cursor-default items-center justify-center py-1",
+      className
+    )}
+    {...props}
+  >
+    <ChevronDown className="h-4 w-4" />
+  </SelectPrimitive.ScrollDownButton>
+));
+SelectScrollDownButton.displayName =
+  SelectPrimitive.ScrollDownButton.displayName;
+
+const SelectContent = React.forwardRef<
+  React.ElementRef<typeof SelectPrimitive.Content>,
+  React.ComponentPropsWithoutRef<typeof SelectPrimitive.Content>
+>(({ className, children, position = "popper", ...props }, ref) => (
+  <SelectPrimitive.Portal>
+    <SelectPrimitive.Content
+      ref={ref}
+      className={cn(
+        "relative z-50 max-h-96 min-w-[8rem] overflow-hidden rounded-md border bg-popover text-popover-foreground shadow-md data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2",
+        position === "popper" &&
+          "data-[side=bottom]:translate-y-1 data-[side=left]:-translate-x-1 data-[side=right]:translate-x-1 data-[side=top]:-translate-y-1",
+        className
+      )}
+      position={position}
+      {...props}
+    >
+      <SelectScrollUpButton />
+      <SelectPrimitive.Viewport
+        className={cn(
+          "p-1",
+          position === "popper" &&
+            "h-[var(--radix-select-trigger-height)] w-full min-w-[var(--radix-select-trigger-width)]"
+        )}
+      >
+        {children}
+      </SelectPrimitive.Viewport>
+      <SelectScrollDownButton />
+    </SelectPrimitive.Content>
+  </SelectPrimitive.Portal>
+));
+SelectContent.displayName = SelectPrimitive.Content.displayName;
+
+const SelectLabel = React.forwardRef<
+  React.ElementRef<typeof SelectPrimitive.Label>,
+  React.ComponentPropsWithoutRef<typeof SelectPrimitive.Label>
+>(({ className, ...props }, ref) => (
+  <SelectPrimitive.Label
+    ref={ref}
+    className={cn("py-1.5 pl-8 pr-2 text-sm font-semibold", className)}
+    {...props}
+  />
+));
+SelectLabel.displayName = SelectPrimitive.Label.displayName;
+
+const SelectItem = React.forwardRef<
+  React.ElementRef<typeof SelectPrimitive.Item>,
+  React.ComponentPropsWithoutRef<typeof SelectPrimitive.Item>
+>(({ className, children, ...props }, ref) => (
+  <SelectPrimitive.Item
+    ref={ref}
+    className={cn(
+      "relative flex w-full cursor-default select-none items-center rounded-sm py-1.5 pl-8 pr-2 text-sm outline-none focus:bg-accent focus:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50",
+      className
+    )}
+    {...props}
+  >
+    <span className="absolute left-2 flex h-3.5 w-3.5 items-center justify-center">
+      <SelectPrimitive.ItemIndicator>
+        <Check className="h-4 w-4" />
+      </SelectPrimitive.ItemIndicator>
+    </span>
+
+    <SelectPrimitive.ItemText>{children}</SelectPrimitive.ItemText>
+  </SelectPrimitive.Item>
+));
+SelectItem.displayName = SelectPrimitive.Item.displayName;
+
+const SelectSeparator = React.forwardRef<
+  React.ElementRef<typeof SelectPrimitive.Separator>,
+  React.ComponentPropsWithoutRef<typeof SelectPrimitive.Separator>
+>(({ className, ...props }, ref) => (
+  <SelectPrimitive.Separator
+    ref={ref}
+    className={cn("-mx-1 my-1 h-px bg-muted", className)}
+    {...props}
+  />
+));
+SelectSeparator.displayName = SelectPrimitive.Separator.displayName;
+
+export {
+  Select,
+  SelectGroup,
+  SelectValue,
+  SelectTrigger,
+  SelectContent,
+  SelectLabel,
+  SelectItem,
+  SelectSeparator,
+  SelectScrollUpButton,
+  SelectScrollDownButton,
+};

debug-analytics.js

@@ -0,0 +1,27 @@
+const { MongoClient } = require('mongodb');
+
+async function debug() {
+  const uri = 'mongodb://7qV5rRanD6UwANNO:NK1EFfaKpJZcTQlmm7pDUUI7Yk7yqxN6@51.254.197.189:27017/librechat?authSource=admin';
+  const client = new MongoClient(uri);
+  await client.connect();
+  const db = client.db('librechat');
+
+  // Vérifier les types
+  const user = await db.collection('users').findOne({});
+  const tx = await db.collection('transactions').findOne({});
+  const conv = await db.collection('conversations').findOne({});
+
+  console.log('=== TYPES DES IDs ===');
+  console.log('user._id:', typeof user._id, '->', user._id);
+  console.log('transaction.user:', typeof tx.user, '->', tx.user);
+  console.log('conversation.user:', typeof conv.user, '->', conv.user);
+
+  console.log('\n=== COMPARAISONS ===');
+  console.log('user._id === tx.user:', user._id === tx.user);
+  console.log('String(user._id) === String(tx.user):', String(user._id) === String(tx.user));
+  console.log('user._id.toString() === conv.user:', user._id.toString() === conv.user);
+
+  await client.close();
+}
+
+debug().catch(console.error);

debug-tokens.js

@@ -0,0 +1,38 @@
+const { MongoClient } = require('mongodb');
+
+async function debug() {
+  const uri = 'mongodb://7qV5rRanD6UwANNO:NK1EFfaKpJZcTQlmm7pDUUI7Yk7yqxN6@51.254.197.189:27017/librechat?authSource=admin';
+  const client = new MongoClient(uri);
+  await client.connect();
+  const db = client.db('librechat');
+
+  const usersToCheck = ['Kleyntssens', 'Lilou Guillaume', 'Isabelle De Witte', 'Flavie Pochet'];
+
+  console.log('=== VERIFICATION TOKENS DEPUIS TRANSACTIONS ===\n');
+
+  for (const searchName of usersToCheck) {
+    const user = await db.collection('users').findOne({ name: { $regex: searchName, $options: 'i' } });
+
+    if (!user) {
+      console.log('NOT FOUND:', searchName);
+      continue;
+    }
+
+    const convCount = await db.collection('conversations').countDocuments({ user: user._id.toString() });
+    const txs = await db.collection('transactions').find({ user: user._id }).toArray();
+    const tokensFromTx = txs.reduce((sum, t) => sum + Math.abs(t.rawAmount || 0), 0);
+    const balance = await db.collection('balances').findOne({ user: user._id });
+    const credits = balance?.tokenCredits || 0;
+
+    console.log('---');
+    console.log('User:', user.name);
+    console.log('Conversations:', convCount);
+    console.log('Tokens (VRAI depuis transactions):', tokensFromTx.toLocaleString());
+    console.log('Credits:', credits.toLocaleString());
+    console.log('Nb transactions:', txs.length);
+  }
+
+  await client.close();
+}
+
+debug().catch(console.error);

hooks/useCollection.old.ts

@@ -0,0 +1,73 @@
+"use client";
+
+import { useState, useEffect, useCallback, useMemo } from "react";
+
+interface UseCollectionOptions {
+  page?: number;
+  limit?: number;
+  filter?: Record<string, unknown>;
+  search?: string;
+}
+
+interface CollectionResponse<T> {
+  data: T[];
+  total: number;
+  page: number;
+  limit: number;
+  totalPages: number;
+}
+
+export function useCollection<T = Record<string, unknown>>(
+  collectionName: string,
+  options: UseCollectionOptions = {}
+) {
+  const [data, setData] = useState<T[]>([]);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState<string | null>(null);
+  const [total, setTotal] = useState(0);
+  const [totalPages, setTotalPages] = useState(0);
+
+  const { page = 1, limit = 20, filter = {}, search } = options;
+
+  // Mémoriser la chaîne JSON du filtre pour éviter les re-renders inutiles
+  const filterString = useMemo(() => JSON.stringify(filter), [filter]);
+
+  const fetchData = useCallback(async () => {
+    try {
+      setLoading(true);
+      const params = new URLSearchParams({
+        page: page.toString(),
+        limit: limit.toString(),
+        filter: filterString,
+      });
+      if (search) {
+        params.append("search", search);
+      }
+
+      const response = await fetch(
+        `/api/collections/${collectionName}?${params}`
+      );
+      if (!response.ok)
+        throw new Error(`Erreur lors du chargement de ${collectionName}`);
+
+      const result: CollectionResponse<T> = await response.json();
+      setData(result.data);
+      setTotal(result.total);
+      setTotalPages(result.totalPages);
+    } catch (err) {
+      setError(err instanceof Error ? err.message : "Erreur inconnue");
+    } finally {
+      setLoading(false);
+    }
+  }, [collectionName, page, limit, filterString]);
+
+  useEffect(() => {
+    fetchData();
+  }, [fetchData]);
+
+  const refetch = useCallback(() => {
+    return fetchData();
+  }, [fetchData]);
+
+  return { data, loading, error, total, totalPages, refetch };
+}

hooks/useCollection.ts

@@ -1,11 +1,13 @@
 "use client";
 
-import { useState, useEffect, useCallback, useMemo } from 'react';
+import { useState, useEffect, useCallback, useMemo } from "react";
 
 interface UseCollectionOptions {
   page?: number;
   limit?: number;
   filter?: Record<string, unknown>;
+  search?: string;
+  referent?: string;
 }
 
 interface CollectionResponse<T> {
@@ -26,7 +28,7 @@ export function useCollection<T = Record<string, unknown>>(
   const [total, setTotal] = useState(0);
   const [totalPages, setTotalPages] = useState(0);
 
-  const { page = 1, limit = 20, filter = {} } = options;
+  const { page = 1, limit = 20, filter = {}, search, referent } = options;
 
   // Mémoriser la chaîne JSON du filtre pour éviter les re-renders inutiles
   const filterString = useMemo(() => JSON.stringify(filter), [filter]);
@@ -37,22 +39,31 @@ export function useCollection<T = Record<string, unknown>>(
       const params = new URLSearchParams({
         page: page.toString(),
         limit: limit.toString(),
-        filter: filterString
+        filter: filterString,
       });
+      if (search) {
+        params.append("search", search);
+      }
+      if (referent) {
+        params.append("referent", referent);
+      }
 
-      const response = await fetch(`/api/collections/${collectionName}?${params}`);
-      if (!response.ok) throw new Error(`Erreur lors du chargement de ${collectionName}`);
+      const response = await fetch(
+        `/api/collections/${collectionName}?${params}`
+      );
+      if (!response.ok)
+        throw new Error(`Erreur lors du chargement de ${collectionName}`);
 
       const result: CollectionResponse<T> = await response.json();
       setData(result.data);
       setTotal(result.total);
       setTotalPages(result.totalPages);
     } catch (err) {
-      setError(err instanceof Error ? err.message : 'Erreur inconnue');
+      setError(err instanceof Error ? err.message : "Erreur inconnue");
     } finally {
       setLoading(false);
     }
-  }, [collectionName, page, limit, filterString]);
+  }, [collectionName, page, limit, filterString, search, referent]);
 
   useEffect(() => {
     fetchData();

hooks/useCollection.ts.bak

@@ -0,0 +1,73 @@
+"use client";
+
+import { useState, useEffect, useCallback, useMemo } from "react";
+
+interface UseCollectionOptions {
+  page?: number;
+  limit?: number;
+  filter?: Record<string, unknown>;
+  search?: string;
+}
+
+interface CollectionResponse<T> {
+  data: T[];
+  total: number;
+  page: number;
+  limit: number;
+  totalPages: number;
+}
+
+export function useCollection<T = Record<string, unknown>>(
+  collectionName: string,
+  options: UseCollectionOptions = {}
+) {
+  const [data, setData] = useState<T[]>([]);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState<string | null>(null);
+  const [total, setTotal] = useState(0);
+  const [totalPages, setTotalPages] = useState(0);
+
+  const { page = 1, limit = 20, filter = {}, search } = options;
+
+  // Mémoriser la chaîne JSON du filtre pour éviter les re-renders inutiles
+  const filterString = useMemo(() => JSON.stringify(filter), [filter]);
+
+  const fetchData = useCallback(async () => {
+    try {
+      setLoading(true);
+      const params = new URLSearchParams({
+        page: page.toString(),
+        limit: limit.toString(),
+        filter: filterString,
+      });
+      if (search) {
+        params.append("search", search);
+      }
+
+      const response = await fetch(
+        `/api/collections/${collectionName}?${params}`
+      );
+      if (!response.ok)
+        throw new Error(`Erreur lors du chargement de ${collectionName}`);
+
+      const result: CollectionResponse<T> = await response.json();
+      setData(result.data);
+      setTotal(result.total);
+      setTotalPages(result.totalPages);
+    } catch (err) {
+      setError(err instanceof Error ? err.message : "Erreur inconnue");
+    } finally {
+      setLoading(false);
+    }
+  }, [collectionName, page, limit, filterString]);
+
+  useEffect(() => {
+    fetchData();
+  }, [fetchData]);
+
+  const refetch = useCallback(() => {
+    return fetchData();
+  }, [fetchData]);
+
+  return { data, loading, error, total, totalPages, refetch };
+}

hooks/useStats.ts

@@ -7,6 +7,11 @@ interface DailyToken {
   value: number;
 }
 
+interface DailyConnection {
+  name: string;
+  value: number;
+}
+
 interface ModelDistribution {
   name: string;
   value: number;
@@ -14,6 +19,7 @@ interface ModelDistribution {
 
 interface StatsData {
   dailyTokens: DailyToken[];
+  dailyConnections: DailyConnection[];
   modelDistribution: ModelDistribution[];
 }
 

lib/supabase/client.ts

@@ -0,0 +1,8 @@
+import { createBrowserClient } from '@supabase/ssr'
+
+export function createClient() {
+  return createBrowserClient(
+    process.env.NEXT_PUBLIC_SUPABASE_URL!,
+    process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY!
+  )
+}

lib/supabase/server.ts

@@ -0,0 +1,29 @@
+import { createServerClient as createSupabaseServerClient } from '@supabase/ssr'
+import { cookies } from 'next/headers'
+
+export async function createServerClient() {
+  const cookieStore = await cookies()
+
+  return createSupabaseServerClient(
+    process.env.NEXT_PUBLIC_SUPABASE_URL!,
+    process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY!,
+    {
+      cookies: {
+        getAll() {
+          return cookieStore.getAll()
+        },
+        setAll(cookiesToSet: Array<{ name: string; value: string; options?: Record<string, unknown> }>) {
+          try {
+            cookiesToSet.forEach(({ name, value, options }) =>
+              cookieStore.set(name, value, options)
+            )
+          } catch {
+            // The `setAll` method was called from a Server Component.
+            // This can be ignored if you have middleware refreshing
+            // user sessions.
+          }
+        },
+      },
+    }
+  )
+}

lib/types/index.ts

@@ -21,6 +21,11 @@ export interface LibreChatUser extends Record<string, unknown> {
   createdAt: Date;
   updatedAt: Date;
   __v: number;
+  // Champs additionnels pour les étudiants
+  prenom?: string;
+  nom?: string;
+  referent?: string;
+  cours?: string;
 }
 
 export interface LibreChatConversation extends Record<string, unknown> {

lib/utils/currency.ts

@@ -0,0 +1,49 @@
+// Fonction de conversion des crédits en euros
+export function convertCreditsToEuros(credits: number): {
+  usd: number;
+  eur: number;
+  formatted: {
+    usd: string;
+    eur: string;
+  };
+} {
+  // Donc : 1 million de crédits = 1 USD
+  const usdAmount = credits / 1_000_000;
+
+  // Taux de change USD → EUR (vous pouvez ajuster ce taux)
+  // Taux approximatif actuel : 1 USD ≈ 0.92 EUR
+  const USD_TO_EUR_RATE = 0.92;
+  const eurAmount = usdAmount * USD_TO_EUR_RATE;
+
+  return {
+    usd: usdAmount,
+    eur: eurAmount,
+    formatted: {
+      usd: `$${usdAmount.toFixed(2)}`,
+      eur: `€${eurAmount.toFixed(2)}`,
+    },
+  };
+}
+
+// Fonction pour formater les crédits avec conversion
+export function formatCreditsWithCurrency(credits: number): string {
+  const conversion = convertCreditsToEuros(credits);
+  return `${credits.toLocaleString()} crédits (${conversion.formatted.eur})`;
+}
+
+// Fonction pour obtenir le taux de change en temps réel (optionnel)
+export async function getCurrentExchangeRate(): Promise<number> {
+  try {
+    // Vous pouvez utiliser une API gratuite comme exchangerate-api.com
+    const response = await fetch(
+      "https://api.exchangerate-api.com/v4/latest/USD"
+    );
+    const data = await response.json();
+    return data.rates.EUR || 0.92; // Fallback au taux fixe
+  } catch {
+    console.warn(
+      "Impossible de récupérer le taux de change, utilisation du taux fixe"
+    );
+    return 0.92; // Taux fixe de fallback
+  }
+}

middleware.ts

@@ -0,0 +1,65 @@
+import { createServerClient } from '@supabase/ssr'
+import { NextResponse, type NextRequest } from 'next/server'
+
+export async function middleware(request: NextRequest) {
+  let supabaseResponse = NextResponse.next({
+    request,
+  })
+
+  const supabase = createServerClient(
+    process.env.NEXT_PUBLIC_SUPABASE_URL!,
+    process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY!,
+    {
+      cookies: {
+        getAll() {
+          return request.cookies.getAll()
+        },
+        setAll(cookiesToSet: Array<{ name: string; value: string; options?: Record<string, unknown> }>) {
+          cookiesToSet.forEach(({ name, value }) => request.cookies.set(name, value))
+          supabaseResponse = NextResponse.next({
+            request,
+          })
+          cookiesToSet.forEach(({ name, value, options }) =>
+            supabaseResponse.cookies.set(name, value, options)
+          )
+        },
+      },
+    }
+  )
+
+  // Rafraîchir la session
+  const { data: { user } } = await supabase.auth.getUser()
+
+  // Si l'utilisateur est sur la page de login
+  if (request.nextUrl.pathname === '/login') {
+    if (user) {
+      // Utilisateur connecté, rediriger vers le dashboard
+      const redirectUrl = new URL('/', request.url)
+      return NextResponse.redirect(redirectUrl)
+    }
+    // Utilisateur non connecté, autoriser l'accès à la page de login
+    return supabaseResponse
+  }
+
+  // Pour toutes les autres pages, vérifier l'authentification
+  if (!user) {
+    // Utilisateur non connecté, rediriger vers login
+    const redirectUrl = new URL('/login', request.url)
+    return NextResponse.redirect(redirectUrl)
+  }
+
+  return supabaseResponse
+}
+
+export const config = {
+  matcher: [
+    /*
+     * Match all request paths except for the ones starting with:
+     * - _next/static (static files)
+     * - _next/image (image optimization files)
+     * - favicon.ico (favicon file)
+     * - public folder
+     */
+    '/((?!_next/static|_next/image|favicon.ico|public|img).*)',
+  ],
+}

package-lock.json

@@ -8,23 +8,33 @@
       "name": "admin-dashboard",
       "version": "0.1.0",
       "dependencies": {
+        "@radix-ui/react-accordion": "^1.2.12",
         "@radix-ui/react-dialog": "^1.1.15",
+        "@radix-ui/react-label": "^2.1.7",
         "@radix-ui/react-navigation-menu": "^1.2.14",
         "@radix-ui/react-progress": "^1.1.7",
+        "@radix-ui/react-select": "^2.2.6",
         "@radix-ui/react-separator": "^1.1.7",
         "@radix-ui/react-slot": "^1.2.3",
         "@radix-ui/react-tabs": "^1.1.13",
         "@radix-ui/react-tooltip": "^1.2.8",
+        "@supabase/ssr": "^0.7.0",
+        "@supabase/supabase-js": "^2.58.0",
+        "@tanstack/react-query": "^5.90.11",
+        "@types/bcryptjs": "^2.4.6",
         "@types/mongodb": "^4.0.6",
+        "bcryptjs": "^3.0.2",
         "class-variance-authority": "^0.7.1",
         "clsx": "^2.1.1",
+        "dotenv": "^17.2.3",
         "lucide-react": "^0.544.0",
         "mongodb": "^6.20.0",
         "next": "15.5.4",
         "react": "19.1.0",
         "react-dom": "19.1.0",
         "recharts": "^3.2.1",
-        "tailwind-merge": "^3.3.1"
+        "tailwind-merge": "^3.3.1",
+        "xlsx": "^0.18.5"
       },
       "devDependencies": {
         "@eslint/eslintrc": "^3",
@@ -1024,12 +1034,49 @@
         "node": ">=12.4.0"
       }
     },
+    "node_modules/@radix-ui/number": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/@radix-ui/number/-/number-1.1.1.tgz",
+      "integrity": "sha512-MkKCwxlXTgz6CFoJx3pCwn07GKp36+aZyu/u2Ln2VrA5DcdyCZkASEDBTd8x5whTQQL5CiYf4prXKLcgQdv29g==",
+      "license": "MIT"
+    },
     "node_modules/@radix-ui/primitive": {
       "version": "1.1.3",
       "resolved": "https://registry.npmjs.org/@radix-ui/primitive/-/primitive-1.1.3.tgz",
       "integrity": "sha512-JTF99U/6XIjCBo0wqkU5sK10glYe27MRRsfwoiq5zzOEZLHU3A3KCMa5X/azekYRCJ0HlwI0crAXS/5dEHTzDg==",
       "license": "MIT"
     },
+    "node_modules/@radix-ui/react-accordion": {
+      "version": "1.2.12",
+      "resolved": "https://registry.npmjs.org/@radix-ui/react-accordion/-/react-accordion-1.2.12.tgz",
+      "integrity": "sha512-T4nygeh9YE9dLRPhAHSeOZi7HBXo+0kYIPJXayZfvWOWA0+n3dESrZbjfDPUABkUNym6Hd+f2IR113To8D2GPA==",
+      "license": "MIT",
+      "dependencies": {
+        "@radix-ui/primitive": "1.1.3",
+        "@radix-ui/react-collapsible": "1.1.12",
+        "@radix-ui/react-collection": "1.1.7",
+        "@radix-ui/react-compose-refs": "1.1.2",
+        "@radix-ui/react-context": "1.1.2",
+        "@radix-ui/react-direction": "1.1.1",
+        "@radix-ui/react-id": "1.1.1",
+        "@radix-ui/react-primitive": "2.1.3",
+        "@radix-ui/react-use-controllable-state": "1.2.2"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "@types/react-dom": "*",
+        "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc",
+        "react-dom": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        },
+        "@types/react-dom": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@radix-ui/react-arrow": {
       "version": "1.1.7",
       "resolved": "https://registry.npmjs.org/@radix-ui/react-arrow/-/react-arrow-1.1.7.tgz",
@@ -1053,6 +1100,36 @@
         }
       }
     },
+    "node_modules/@radix-ui/react-collapsible": {
+      "version": "1.1.12",
+      "resolved": "https://registry.npmjs.org/@radix-ui/react-collapsible/-/react-collapsible-1.1.12.tgz",
+      "integrity": "sha512-Uu+mSh4agx2ib1uIGPP4/CKNULyajb3p92LsVXmH2EHVMTfZWpll88XJ0j4W0z3f8NK1eYl1+Mf/szHPmcHzyA==",
+      "license": "MIT",
+      "dependencies": {
+        "@radix-ui/primitive": "1.1.3",
+        "@radix-ui/react-compose-refs": "1.1.2",
+        "@radix-ui/react-context": "1.1.2",
+        "@radix-ui/react-id": "1.1.1",
+        "@radix-ui/react-presence": "1.1.5",
+        "@radix-ui/react-primitive": "2.1.3",
+        "@radix-ui/react-use-controllable-state": "1.2.2",
+        "@radix-ui/react-use-layout-effect": "1.1.1"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "@types/react-dom": "*",
+        "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc",
+        "react-dom": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        },
+        "@types/react-dom": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@radix-ui/react-collection": {
       "version": "1.1.7",
       "resolved": "https://registry.npmjs.org/@radix-ui/react-collection/-/react-collection-1.1.7.tgz",
@@ -1245,6 +1322,29 @@
         }
       }
     },
+    "node_modules/@radix-ui/react-label": {
+      "version": "2.1.7",
+      "resolved": "https://registry.npmjs.org/@radix-ui/react-label/-/react-label-2.1.7.tgz",
+      "integrity": "sha512-YT1GqPSL8kJn20djelMX7/cTRp/Y9w5IZHvfxQTVHrOqa2yMl7i/UfMqKRU5V7mEyKTrUVgJXhNQPVCG8PBLoQ==",
+      "license": "MIT",
+      "dependencies": {
+        "@radix-ui/react-primitive": "2.1.3"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "@types/react-dom": "*",
+        "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc",
+        "react-dom": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        },
+        "@types/react-dom": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@radix-ui/react-navigation-menu": {
       "version": "1.2.14",
       "resolved": "https://registry.npmjs.org/@radix-ui/react-navigation-menu/-/react-navigation-menu-1.2.14.tgz",
@@ -1439,6 +1539,49 @@
         }
       }
     },
+    "node_modules/@radix-ui/react-select": {
+      "version": "2.2.6",
+      "resolved": "https://registry.npmjs.org/@radix-ui/react-select/-/react-select-2.2.6.tgz",
+      "integrity": "sha512-I30RydO+bnn2PQztvo25tswPH+wFBjehVGtmagkU78yMdwTwVf12wnAOF+AeP8S2N8xD+5UPbGhkUfPyvT+mwQ==",
+      "license": "MIT",
+      "dependencies": {
+        "@radix-ui/number": "1.1.1",
+        "@radix-ui/primitive": "1.1.3",
+        "@radix-ui/react-collection": "1.1.7",
+        "@radix-ui/react-compose-refs": "1.1.2",
+        "@radix-ui/react-context": "1.1.2",
+        "@radix-ui/react-direction": "1.1.1",
+        "@radix-ui/react-dismissable-layer": "1.1.11",
+        "@radix-ui/react-focus-guards": "1.1.3",
+        "@radix-ui/react-focus-scope": "1.1.7",
+        "@radix-ui/react-id": "1.1.1",
+        "@radix-ui/react-popper": "1.2.8",
+        "@radix-ui/react-portal": "1.1.9",
+        "@radix-ui/react-primitive": "2.1.3",
+        "@radix-ui/react-slot": "1.2.3",
+        "@radix-ui/react-use-callback-ref": "1.1.1",
+        "@radix-ui/react-use-controllable-state": "1.2.2",
+        "@radix-ui/react-use-layout-effect": "1.1.1",
+        "@radix-ui/react-use-previous": "1.1.1",
+        "@radix-ui/react-visually-hidden": "1.2.3",
+        "aria-hidden": "^1.2.4",
+        "react-remove-scroll": "^2.6.3"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "@types/react-dom": "*",
+        "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc",
+        "react-dom": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        },
+        "@types/react-dom": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@radix-ui/react-separator": {
       "version": "1.1.7",
       "resolved": "https://registry.npmjs.org/@radix-ui/react-separator/-/react-separator-1.1.7.tgz",
@@ -1761,6 +1904,115 @@
       "integrity": "sha512-e7Mew686owMaPJVNNLs55PUvgz371nKgwsc4vxE49zsODpJEnxgxRo2y/OKrqueavXgZNMDVj3DdHFlaSAeU8g==",
       "license": "MIT"
     },
+    "node_modules/@supabase/auth-js": {
+      "version": "2.72.0",
+      "resolved": "https://registry.npmjs.org/@supabase/auth-js/-/auth-js-2.72.0.tgz",
+      "integrity": "sha512-4+bnUrtTDK1YD0/FCx2YtMiQH5FGu9Jlf4IQi5kcqRwRwqp2ey39V61nHNdH86jm3DIzz0aZKiWfTW8qXk1swQ==",
+      "license": "MIT",
+      "dependencies": {
+        "@supabase/node-fetch": "^2.6.14"
+      }
+    },
+    "node_modules/@supabase/functions-js": {
+      "version": "2.5.0",
+      "resolved": "https://registry.npmjs.org/@supabase/functions-js/-/functions-js-2.5.0.tgz",
+      "integrity": "sha512-SXBx6Jvp+MOBekeKFu+G11YLYPeVeGQl23eYyAG9+Ro0pQ1aIP0UZNIBxHKNHqxzR0L0n6gysNr2KT3841NATw==",
+      "license": "MIT",
+      "dependencies": {
+        "@supabase/node-fetch": "^2.6.14"
+      }
+    },
+    "node_modules/@supabase/node-fetch": {
+      "version": "2.6.15",
+      "resolved": "https://registry.npmjs.org/@supabase/node-fetch/-/node-fetch-2.6.15.tgz",
+      "integrity": "sha512-1ibVeYUacxWYi9i0cf5efil6adJ9WRyZBLivgjs+AUpewx1F3xPi7gLgaASI2SmIQxPoCEjAsLAzKPgMJVgOUQ==",
+      "license": "MIT",
+      "dependencies": {
+        "whatwg-url": "^5.0.0"
+      },
+      "engines": {
+        "node": "4.x || >=6.0.0"
+      }
+    },
+    "node_modules/@supabase/node-fetch/node_modules/tr46": {
+      "version": "0.0.3",
+      "resolved": "https://registry.npmjs.org/tr46/-/tr46-0.0.3.tgz",
+      "integrity": "sha512-N3WMsuqV66lT30CrXNbEjx4GEwlow3v6rr4mCcv6prnfwhS01rkgyFdjPNBYd9br7LpXV1+Emh01fHnq2Gdgrw==",
+      "license": "MIT"
+    },
+    "node_modules/@supabase/node-fetch/node_modules/webidl-conversions": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-3.0.1.tgz",
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+      "license": "BSD-2-Clause"
+    },
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+      "license": "MIT",
+      "dependencies": {
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+        "webidl-conversions": "^3.0.0"
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+      "license": "MIT",
+      "dependencies": {
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+      }
+    },
+    "node_modules/@supabase/realtime-js": {
+      "version": "2.15.5",
+      "resolved": "https://registry.npmjs.org/@supabase/realtime-js/-/realtime-js-2.15.5.tgz",
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+      "license": "MIT",
+      "dependencies": {
+        "@supabase/node-fetch": "^2.6.13",
+        "@types/phoenix": "^1.6.6",
+        "@types/ws": "^8.18.1",
+        "ws": "^8.18.2"
+      }
+    },
+    "node_modules/@supabase/ssr": {
+      "version": "0.7.0",
+      "resolved": "https://registry.npmjs.org/@supabase/ssr/-/ssr-0.7.0.tgz",
+      "integrity": "sha512-G65t5EhLSJ5c8hTCcXifSL9Q/ZRXvqgXeNo+d3P56f4U1IxwTqjB64UfmfixvmMcjuxnq2yGqEWVJqUcO+AzAg==",
+      "license": "MIT",
+      "dependencies": {
+        "cookie": "^1.0.2"
+      },
+      "peerDependencies": {
+        "@supabase/supabase-js": "^2.43.4"
+      }
+    },
+    "node_modules/@supabase/storage-js": {
+      "version": "2.12.2",
+      "resolved": "https://registry.npmjs.org/@supabase/storage-js/-/storage-js-2.12.2.tgz",
+      "integrity": "sha512-SiySHxi3q7gia7NBYpsYRu8gyI0NhFwSORMxbZIxJ/zAVkN6QpwDRan158CJ+UdzD4WB/rQMAGRqIJQP+7ccAQ==",
+      "license": "MIT",
+      "dependencies": {
+        "@supabase/node-fetch": "^2.6.14"
+      }
+    },
+    "node_modules/@supabase/supabase-js": {
+      "version": "2.58.0",
+      "resolved": "https://registry.npmjs.org/@supabase/supabase-js/-/supabase-js-2.58.0.tgz",
+      "integrity": "sha512-Tm1RmQpoAKdQr4/8wiayGti/no+If7RtveVZjHR8zbO7hhQjmPW2Ok5ZBPf1MGkt5c+9R85AVMsTfSaqAP1sUg==",
+      "license": "MIT",
+      "peer": true,
+      "dependencies": {
+        "@supabase/auth-js": "2.72.0",
+        "@supabase/functions-js": "2.5.0",
+        "@supabase/node-fetch": "2.6.15",
+        "@supabase/postgrest-js": "1.21.4",
+        "@supabase/realtime-js": "2.15.5",
+        "@supabase/storage-js": "2.12.2"
+      }
+    },
     "node_modules/@swc/helpers": {
       "version": "0.5.15",
       "resolved": "https://registry.npmjs.org/@swc/helpers/-/helpers-0.5.15.tgz",
@@ -2046,6 +2298,32 @@
         "tailwindcss": "4.1.14"
       }
     },
+    "node_modules/@tanstack/query-core": {
+      "version": "5.90.11",
+      "resolved": "https://registry.npmjs.org/@tanstack/query-core/-/query-core-5.90.11.tgz",
+      "integrity": "sha512-f9z/nXhCgWDF4lHqgIE30jxLe4sYv15QodfdPDKYAk7nAEjNcndy4dHz3ezhdUaR23BpWa4I2EH4/DZ0//Uf8A==",
+      "license": "MIT",
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/tannerlinsley"
+      }
+    },
+    "node_modules/@tanstack/react-query": {
+      "version": "5.90.11",
+      "resolved": "https://registry.npmjs.org/@tanstack/react-query/-/react-query-5.90.11.tgz",
+      "integrity": "sha512-3uyzz01D1fkTLXuxF3JfoJoHQMU2fxsfJwE+6N5hHy0dVNoZOvwKP8Z2k7k1KDeD54N20apcJnG75TBAStIrBA==",
+      "license": "MIT",
+      "dependencies": {
+        "@tanstack/query-core": "5.90.11"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/tannerlinsley"
+      },
+      "peerDependencies": {
+        "react": "^18 || ^19"
+      }
+    },
     "node_modules/@tybys/wasm-util": {
       "version": "0.10.1",
       "resolved": "https://registry.npmjs.org/@tybys/wasm-util/-/wasm-util-0.10.1.tgz",
@@ -2057,6 +2335,12 @@
         "tslib": "^2.4.0"
       }
     },
+    "node_modules/@types/bcryptjs": {
+      "version": "2.4.6",
+      "resolved": "https://registry.npmjs.org/@types/bcryptjs/-/bcryptjs-2.4.6.tgz",
+      "integrity": "sha512-9xlo6R2qDs5uixm0bcIqCeMCE6HiQsIyel9KQySStiyqNl2tnj2mP3DX1Nf56MD6KMenNNlBBsy3LJ7gUEQPXQ==",
+      "license": "MIT"
+    },
     "node_modules/@types/d3-array": {
       "version": "3.2.2",
       "resolved": "https://registry.npmjs.org/@types/d3-array/-/d3-array-3.2.2.tgz",
@@ -2154,12 +2438,17 @@
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       "resolved": "https://registry.npmjs.org/@types/node/-/node-20.19.19.tgz",
       "integrity": "sha512-pb1Uqj5WJP7wrcbLU7Ru4QtA0+3kAXrkutGiD26wUKzSMgNNaPARTUDQmElUXp64kh3cWdou3Q0C7qwwxqSFmg==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "undici-types": "~6.21.0"
       }
     },
+    "node_modules/@types/phoenix": {
+      "version": "1.6.6",
+      "resolved": "https://registry.npmjs.org/@types/phoenix/-/phoenix-1.6.6.tgz",
+      "integrity": "sha512-PIzZZlEppgrpoT2QgbnDU+MMzuR6BbCjllj0bM70lWoejMeNJAxCchxnv7J3XFkI8MpygtRpzXrIlmWUBclP5A==",
+      "license": "MIT"
+    },
     "node_modules/@types/react": {
       "version": "19.2.0",
       "resolved": "https://registry.npmjs.org/@types/react/-/react-19.2.0.tgz",
@@ -2203,6 +2492,15 @@
         "@types/webidl-conversions": "*"
       }
     },
+    "node_modules/@types/ws": {
+      "version": "8.18.1",
+      "resolved": "https://registry.npmjs.org/@types/ws/-/ws-8.18.1.tgz",
+      "integrity": "sha512-ThVF6DCVhA8kUGy+aazFQ4kXQ7E1Ty7A3ypFOe0IcJV8O/M511G99AW24irKrW56Wt44yG9+ij8FaqoBGkuBXg==",
+      "license": "MIT",
+      "dependencies": {
+        "@types/node": "*"
+      }
+    },
     "node_modules/@typescript-eslint/eslint-plugin": {
       "version": "8.45.0",
       "resolved": "https://registry.npmjs.org/@typescript-eslint/eslint-plugin/-/eslint-plugin-8.45.0.tgz",
@@ -2785,6 +3083,15 @@
         "acorn": "^6.0.0 || ^7.0.0 || ^8.0.0"
       }
     },
+    "node_modules/adler-32": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/adler-32/-/adler-32-1.3.1.tgz",
+      "integrity": "sha512-ynZ4w/nUUv5rrsR8UUGoe1VC9hZj6V5hU9Qw1HlMDJGEJw5S7TfTErWTjMys6M7vr0YWcPqs3qAr4ss0nDfP+A==",
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
     "node_modules/ajv": {
       "version": "6.12.6",
       "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
@@ -3067,6 +3374,15 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/bcryptjs": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/bcryptjs/-/bcryptjs-3.0.2.tgz",
+      "integrity": "sha512-k38b3XOZKv60C4E2hVsXTolJWfkGRMbILBIe2IBITXciy5bOsTKot5kDrf3ZfufQtQOUN5mXceUEpU1rTl9Uog==",
+      "license": "BSD-3-Clause",
+      "bin": {
+        "bcrypt": "bin/bcrypt"
+      }
+    },
     "node_modules/brace-expansion": {
       "version": "1.1.12",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.12.tgz",
@@ -3180,6 +3496,19 @@
       ],
       "license": "CC-BY-4.0"
     },
+    "node_modules/cfb": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/cfb/-/cfb-1.2.2.tgz",
+      "integrity": "sha512-KfdUZsSOw19/ObEWasvBP/Ac4reZvAGauZhs6S/gqNhXhI7cKwvlH7ulj+dOEYnca4bm4SGo8C1bTAQvnTjgQA==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "adler-32": "~1.3.0",
+        "crc-32": "~1.2.0"
+      },
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
     "node_modules/chalk": {
       "version": "4.1.2",
       "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.2.tgz",
@@ -3234,6 +3563,15 @@
         "node": ">=6"
       }
     },
+    "node_modules/codepage": {
+      "version": "1.15.0",
+      "resolved": "https://registry.npmjs.org/codepage/-/codepage-1.15.0.tgz",
+      "integrity": "sha512-3g6NUTPd/YtuuGrhMnOMRjFc+LJw/bnMp3+0r/Wcz3IXUuCosKRJvMphm5+Q+bvTVGcJJuRvVLuYba+WojaFaA==",
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
     "node_modules/color-convert": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
@@ -3261,6 +3599,27 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/cookie": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/cookie/-/cookie-1.0.2.tgz",
+      "integrity": "sha512-9Kr/j4O16ISv8zBBhJoi4bXOYNTkFLOqSL3UDB0njXxCXNezjeyVrJyGOWtgfs/q2km1gwBcfH8q1yEGoMYunA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/crc-32": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/crc-32/-/crc-32-1.2.2.tgz",
+      "integrity": "sha512-ROmzCKrTnOwybPcJApAA6WBWij23HVfGVNKqqrZpuyZOHqK2CwHSvpGuyt/UNNvaIjEd8X5IFGp4Mh+Ie1IHJQ==",
+      "license": "Apache-2.0",
+      "bin": {
+        "crc32": "bin/crc32.njs"
+      },
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
     "node_modules/cross-spawn": {
       "version": "7.0.6",
       "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-7.0.6.tgz",
@@ -3561,6 +3920,18 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/dotenv": {
+      "version": "17.2.3",
+      "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-17.2.3.tgz",
+      "integrity": "sha512-JVUnt+DUIzu87TABbhPmNfVdBDt18BLOWjMUFJMSi/Qqg7NTYtabbvSNJGOJ7afbRuv9D/lngizHtP7QyLQ+9w==",
+      "license": "BSD-2-Clause",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://dotenvx.com"
+      }
+    },
     "node_modules/dunder-proto": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/dunder-proto/-/dunder-proto-1.0.1.tgz",
@@ -4372,6 +4743,15 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/frac": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/frac/-/frac-1.1.2.tgz",
+      "integrity": "sha512-w/XBfkibaTl3YDqASwfDUqkna4Z2p9cFSr1aHDt0WoMTECnRfBOv2WArlZILlqgWlmdIlALXGpM2AOhEk5W3IA==",
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
     "node_modules/function-bind": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.2.tgz",
@@ -6775,6 +7155,18 @@
         "memory-pager": "^1.0.2"
       }
     },
+    "node_modules/ssf": {
+      "version": "0.11.2",
+      "resolved": "https://registry.npmjs.org/ssf/-/ssf-0.11.2.tgz",
+      "integrity": "sha512-+idbmIXoYET47hH+d7dfm2epdOMUDjqcB4648sTZ+t2JwoyBFL/insLfB/racrDmsKB3diwsDA696pZMieAC5g==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "frac": "~1.1.2"
+      },
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
     "node_modules/stable-hash": {
       "version": "0.0.5",
       "resolved": "https://registry.npmjs.org/stable-hash/-/stable-hash-0.0.5.tgz",
@@ -7280,7 +7672,6 @@
       "version": "6.21.0",
       "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.21.0.tgz",
       "integrity": "sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==",
-      "dev": true,
       "license": "MIT"
     },
     "node_modules/unrs-resolver": {
@@ -7529,6 +7920,24 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/wmf": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wmf/-/wmf-1.0.2.tgz",
+      "integrity": "sha512-/p9K7bEh0Dj6WbXg4JG0xvLQmIadrner1bi45VMJTfnbVHsc7yIajZyoSoK60/dtVBs12Fm6WkUI5/3WAVsNMw==",
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
+    "node_modules/word": {
+      "version": "0.3.0",
+      "resolved": "https://registry.npmjs.org/word/-/word-0.3.0.tgz",
+      "integrity": "sha512-OELeY0Q61OXpdUfTp+oweA/vtLVg5VDOXh+3he3PNzLGG/y0oylSOC1xRVj0+l4vQ3tj/bB1HVHv1ocXkQceFA==",
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
     "node_modules/word-wrap": {
       "version": "1.2.5",
       "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.5.tgz",
@@ -7539,6 +7948,48 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/ws": {
+      "version": "8.18.3",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.18.3.tgz",
+      "integrity": "sha512-PEIGCY5tSlUt50cqyMXfCzX+oOPqN0vuGqWzbcJ2xvnkzkq46oOpz7dQaTDBdfICb4N14+GARUDw2XV2N4tvzg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=10.0.0"
+      },
+      "peerDependencies": {
+        "bufferutil": "^4.0.1",
+        "utf-8-validate": ">=5.0.2"
+      },
+      "peerDependenciesMeta": {
+        "bufferutil": {
+          "optional": true
+        },
+        "utf-8-validate": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/xlsx": {
+      "version": "0.18.5",
+      "resolved": "https://registry.npmjs.org/xlsx/-/xlsx-0.18.5.tgz",
+      "integrity": "sha512-dmg3LCjBPHZnQp5/F/+nnTa+miPJxUXB6vtk42YjBBKayDNagxGEeIdWApkYPOf3Z3pm3k62Knjzp7lMeTEtFQ==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "adler-32": "~1.3.0",
+        "cfb": "~1.2.1",
+        "codepage": "~1.15.0",
+        "crc-32": "~1.2.1",
+        "ssf": "~0.11.2",
+        "wmf": "~1.0.1",
+        "word": "~0.3.0"
+      },
+      "bin": {
+        "xlsx": "bin/xlsx.njs"
+      },
+      "engines": {
+        "node": ">=0.8"
+      }
+    },
     "node_modules/yallist": {
       "version": "5.0.0",
       "resolved": "https://registry.npmjs.org/yallist/-/yallist-5.0.0.tgz",

package.json

@@ -9,23 +9,33 @@
     "lint": "eslint"
   },
   "dependencies": {
+    "@radix-ui/react-accordion": "^1.2.12",
     "@radix-ui/react-dialog": "^1.1.15",
+    "@radix-ui/react-label": "^2.1.7",
     "@radix-ui/react-navigation-menu": "^1.2.14",
     "@radix-ui/react-progress": "^1.1.7",
+    "@radix-ui/react-select": "^2.2.6",
     "@radix-ui/react-separator": "^1.1.7",
     "@radix-ui/react-slot": "^1.2.3",
     "@radix-ui/react-tabs": "^1.1.13",
     "@radix-ui/react-tooltip": "^1.2.8",
+    "@supabase/ssr": "^0.7.0",
+    "@supabase/supabase-js": "^2.58.0",
+    "@tanstack/react-query": "^5.90.11",
+    "@types/bcryptjs": "^2.4.6",
     "@types/mongodb": "^4.0.6",
+    "bcryptjs": "^3.0.2",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
+    "dotenv": "^17.2.3",
     "lucide-react": "^0.544.0",
     "mongodb": "^6.20.0",
     "next": "15.5.4",
     "react": "19.1.0",
     "react-dom": "19.1.0",
     "recharts": "^3.2.1",
-    "tailwind-merge": "^3.3.1"
+    "tailwind-merge": "^3.3.1",
+    "xlsx": "^0.18.5"
   },
   "devDependencies": {
     "@eslint/eslintrc": "^3",

scripts/README.md

@@ -0,0 +1,114 @@
+# 📥 Import Automatique d'Utilisateurs depuis Excel
+
+Ce script permet d'importer automatiquement des utilisateurs dans MongoDB depuis un fichier Excel.
+
+## 🚀 Utilisation
+
+### 1. Préparer le fichier Excel
+
+Placer votre fichier `.xlsx` dans le dossier `public/list_users/`
+
+**Format attendu :**
+```
+Nom Etudiant | Prénom Etudiant | Matricule HE | EMail Etudiant 2
+```
+
+**Exemple :**
+```
+Albarran Perez | Tamara | 1240935 | tamara.albarran@student.ihecs.be
+Amjahed | Kawtar | 1241004 | kawtar.amjahed@student.ihecs.be
+```
+
+**Nom du fichier :** Le nom doit être le nom du référent avec underscores.
+- ✅ `Emmanuel_WATHELE.xlsx`
+- ✅ `Sophie_MARTIN.xlsx`
+- ❌ `liste.xlsx`
+
+### 2. Configurer le script
+
+Ouvrir `scripts/import-users.js` et modifier ces lignes :
+
+```javascript
+const XLSX_FILENAME = "Emmanuel_WATHELE.xlsx"; // ⚠️ Nom du fichier
+const DEFAULT_PASSWORD = "IHECS-2025";         // Mot de passe par défaut
+const COURS = "Ouverture à l'esprit critique"; // Nom du cours
+```
+
+### 3. Lancer l'import
+
+```bash
+node scripts/import-users.js
+```
+
+## 📊 Ce que fait le script
+
+1. ✅ Lit le fichier Excel
+2. ✅ Extrait le référent depuis le nom du fichier (`Emmanuel_WATHELE` → `Emmanuel WATHELE`)
+3. ✅ Hash le mot de passe une seule fois (optimisation)
+4. ✅ Pour chaque étudiant :
+   - Vérifie que l'email est valide
+   - Vérifie que l'email n'existe pas déjà
+   - Crée l'utilisateur avec :
+     - `nom`, `prenom`, `email`
+     - `referent` (extrait du nom du fichier)
+     - `cours` (défini dans le script)
+     - `password` hashé
+     - `role: "USER"`
+   - Crée une balance initiale (3 000 000 tokens)
+5. ✅ Affiche un résumé détaillé
+
+## 📝 Exemple de résultat
+
+```
+🚀 Démarrage de l'import...
+
+📋 Référent: Emmanuel WATHELE
+📚 Cours: Ouverture à l'esprit critique
+🔑 Password par défaut: IHECS-2025
+
+📁 Lecture du fichier: C:\...\public\list_users\Emmanuel_WATHELE.xlsx
+✅ 50 lignes détectées dans le fichier
+
+🔐 Hash du mot de passe...
+🔌 Connexion à MongoDB...
+✅ Connecté à MongoDB
+
+📥 Import en cours...
+
+[1/50] ✅ Créé: Tamara Albarran Perez (tamara.albarran@student.ihecs.be)
+[2/50] ✅ Créé: Kawtar Amjahed (kawtar.amjahed@student.ihecs.be)
+[3/50] ⏭️  Ignoré (existe déjà): nezaket.arslan@student.ihecs.be
+...
+
+============================================================
+📊 RÉSUMÉ DE L'IMPORT
+============================================================
+✅ Utilisateurs créés: 48
+⏭️  Utilisateurs ignorés (déjà existants): 2
+❌ Erreurs: 0
+============================================================
+
+✨ Import terminé !
+```
+
+## ⚠️ Important
+
+- Le script **ignore** les utilisateurs déjà existants (même email)
+- Le script **ignore** la colonne "Matricule HE" (non sauvegardée)
+- Tous les utilisateurs auront le **même mot de passe** (ils pourront le changer après)
+- Chaque utilisateur reçoit **3 000 000 tokens** par défaut
+
+## 🔧 Dépannage
+
+**Erreur : "Cannot find module 'xlsx'"**
+```bash
+npm install xlsx
+```
+
+**Erreur : "connect ECONNREFUSED"**
+- Vérifier que MongoDB est démarré
+- Vérifier la connexion dans `.env.local`
+
+**Erreur : "File not found"**
+- Vérifier que le fichier est bien dans `public/list_users/`
+- Vérifier le nom du fichier dans le script

scripts/import-ihecs.js

@@ -0,0 +1,167 @@
+import XLSX from 'xlsx';
+import { MongoClient, ObjectId } from 'mongodb';
+import bcrypt from 'bcryptjs';
+import path from 'path';
+import { fileURLToPath } from 'url';
+import dotenv from 'dotenv';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+
+// Charger les variables d'environnement depuis .env.local
+dotenv.config({ path: path.join(__dirname, '..', '.env.local') });
+
+// Configuration
+const MONGODB_URI = process.env.MONGODB_URI;
+const XLSX_FILENAME = "IHECS.xlsx"; // ⚠️ Fichier pour IHECS / M2RP
+const DEFAULT_PASSWORD = "IHECS-2025";
+const REFERENT = "IHECS";
+const COURS = "M2RP";
+
+async function importUsers() {
+  console.log("🚀 Démarrage de l'import IHECS / M2RP...\n");
+
+  try {
+    // Vérifier que MONGODB_URI est défini
+    if (!MONGODB_URI) {
+      throw new Error("MONGODB_URI non défini dans .env.local");
+    }
+
+    console.log(`📋 Référent: ${REFERENT}`);
+    console.log(`📚 Cours: ${COURS}`);
+    console.log(`🔑 Password par défaut: ${DEFAULT_PASSWORD}\n`);
+
+    // Lire le fichier Excel
+    const filePath = path.join(__dirname, '..', 'public', 'list_users', XLSX_FILENAME);
+    console.log(`📁 Lecture du fichier: ${filePath}`);
+
+    const workbook = XLSX.readFile(filePath);
+    const sheet = workbook.Sheets[workbook.SheetNames[0]];
+    const data = XLSX.utils.sheet_to_json(sheet);
+
+    console.log(`✅ ${data.length} lignes détectées dans le fichier\n`);
+
+    // Hash le password une seule fois (optimisation)
+    console.log("🔐 Hash du mot de passe...");
+    const hashedPassword = await bcrypt.hash(DEFAULT_PASSWORD, 12);
+
+    // Préparer les users
+    const users = data.map(row => ({
+      nom: row["Nom de famille"],
+      prenom: row["Prénom"],
+      name: `${row["Prénom"]} ${row["Nom de famille"]}`,
+      email: row["Adresse de courriel"],
+      username: row["Nom d'utilisateur"] || row["Adresse de courriel"]?.split("@")[0],
+      password: hashedPassword,
+      emailVerified: false,
+      avatar: null,
+      provider: "local",
+      role: "USER",
+
+      // Nouveaux champs pour le cours et le référent
+      referent: REFERENT,
+      cours: COURS,
+
+      plugins: [],
+      twoFactorEnabled: false,
+      termsAccepted: true,
+      personalization: {
+        memories: false,
+        _id: new ObjectId(),
+      },
+      backupCodes: [],
+      refreshToken: [],
+      createdAt: new Date(),
+      updatedAt: new Date(),
+      __v: 0,
+    }));
+
+    // Connexion à MongoDB
+    console.log("🔌 Connexion à MongoDB...");
+    const client = new MongoClient(MONGODB_URI);
+    await client.connect();
+    const db = client.db('librechat');
+    console.log("✅ Connecté à MongoDB\n");
+
+    // Import des users
+    const results = { created: [], errors: [], skipped: [] };
+
+    console.log("📥 Import en cours...\n");
+
+    for (let i = 0; i < users.length; i++) {
+      const user = users[i];
+      const progress = `[${i + 1}/${users.length}]`;
+
+      try {
+        // Validation email
+        if (!user.email || !user.email.includes('@')) {
+          console.log(`${progress} ⚠️  Email invalide: ${user.name}`);
+          results.errors.push({ name: user.name, error: "Email invalide" });
+          continue;
+        }
+
+        // Vérifier si email existe déjà
+        const existing = await db.collection("users").findOne({ email: user.email });
+
+        if (existing) {
+          console.log(`${progress} ⏭️  Ignoré (existe déjà): ${user.email}`);
+          results.skipped.push(user.email);
+          continue;
+        }
+
+        // Insérer le user
+        const result = await db.collection("users").insertOne(user);
+
+        // Créer la balance initiale
+        await db.collection("balances").insertOne({
+          user: result.insertedId,
+          tokenCredits: 3000000,
+          autoRefillEnabled: false,
+          lastRefill: new Date(),
+          refillAmount: 0,
+          refillIntervalUnit: "month",
+          refillIntervalValue: 1,
+          __v: 0,
+        });
+
+        console.log(`${progress} ✅ Créé: ${user.prenom} ${user.nom} (${user.email})`);
+        results.created.push(user.email);
+
+      } catch (error) {
+        console.error(`${progress} ❌ Erreur: ${user.email} - ${error.message}`);
+        results.errors.push({ email: user.email, error: error.message });
+      }
+    }
+
+    // Fermer la connexion
+    await client.close();
+
+    // Résumé final
+    console.log("\n" + "=".repeat(60));
+    console.log("📊 RÉSUMÉ DE L'IMPORT - IHECS / M2RP");
+    console.log("=".repeat(60));
+    console.log(`✅ Utilisateurs créés: ${results.created.length}`);
+    console.log(`⏭️  Utilisateurs ignorés (déjà existants): ${results.skipped.length}`);
+    console.log(`❌ Erreurs: ${results.errors.length}`);
+    console.log("=".repeat(60));
+
+    if (results.errors.length > 0) {
+      console.log("\n⚠️  DÉTAIL DES ERREURS:");
+      results.errors.forEach(e => {
+        console.log(`  - ${e.email || e.name}: ${e.error}`);
+      });
+    }
+
+    console.log("\n✨ Import terminé !\n");
+
+  } catch (error) {
+    console.error("\n❌ ERREUR FATALE:", error.message);
+    console.error(error);
+    process.exit(1);
+  }
+
+  process.exit(0);
+}
+
+// Lancer l'import
+importUsers();

scripts/import-users.js

@@ -0,0 +1,168 @@
+import XLSX from 'xlsx';
+import { MongoClient, ObjectId } from 'mongodb';
+import bcrypt from 'bcryptjs';
+import path from 'path';
+import { fileURLToPath } from 'url';
+import dotenv from 'dotenv';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+
+// Charger les variables d'environnement depuis .env.local
+dotenv.config({ path: path.join(__dirname, '..', '.env.local') });
+
+// Configuration
+const MONGODB_URI = process.env.MONGODB_URI;
+const XLSX_FILENAME = "Emmanuel_WATHELE.xlsx"; // ⚠️ À modifier selon le fichier
+const DEFAULT_PASSWORD = "IHECS-2025";
+const COURS = "Ouverture à l'esprit critique";
+
+async function importUsers() {
+  console.log("🚀 Démarrage de l'import...\n");
+
+  try {
+    // Vérifier que MONGODB_URI est défini
+    if (!MONGODB_URI) {
+      throw new Error("MONGODB_URI non défini dans .env.local");
+    }
+
+    // 1. Extraire le référent depuis le nom du fichier
+    const referent = XLSX_FILENAME.replace('.xlsx', '').replace(/_/g, ' ');
+    console.log(`📋 Référent: ${referent}`);
+    console.log(`📚 Cours: ${COURS}`);
+    console.log(`🔑 Password par défaut: ${DEFAULT_PASSWORD}\n`);
+
+    // 2. Lire le fichier Excel
+    const filePath = path.join(__dirname, '..', 'public', 'list_users', XLSX_FILENAME);
+    console.log(`📁 Lecture du fichier: ${filePath}`);
+
+    const workbook = XLSX.readFile(filePath);
+    const sheet = workbook.Sheets[workbook.SheetNames[0]];
+    const data = XLSX.utils.sheet_to_json(sheet);
+
+    console.log(`✅ ${data.length} lignes détectées dans le fichier\n`);
+
+    // 3. Hash le password une seule fois (optimisation)
+    console.log("🔐 Hash du mot de passe...");
+    const hashedPassword = await bcrypt.hash(DEFAULT_PASSWORD, 12);
+
+    // 4. Préparer les users
+    const users = data.map(row => ({
+      nom: row["Nom Etudiant"],
+      prenom: row["Prénom Etudiant"],
+      name: `${row["Prénom Etudiant"]} ${row["Nom Etudiant"]}`,
+      email: row["EMail Etudiant 2"],
+      username: row["EMail Etudiant 2"]?.split("@")[0],
+      password: hashedPassword,
+      emailVerified: false,
+      avatar: null,
+      provider: "local",
+      role: "USER",
+
+      // Nouveaux champs pour le cours et le référent
+      referent: referent,
+      cours: COURS,
+
+      plugins: [],
+      twoFactorEnabled: false,
+      termsAccepted: true,
+      personalization: {
+        memories: false,
+        _id: new ObjectId(),
+      },
+      backupCodes: [],
+      refreshToken: [],
+      createdAt: new Date(),
+      updatedAt: new Date(),
+      __v: 0,
+    }));
+
+    // 5. Connexion à MongoDB
+    console.log("🔌 Connexion à MongoDB...");
+    const client = new MongoClient(MONGODB_URI);
+    await client.connect();
+    const db = client.db('librechat');
+    console.log("✅ Connecté à MongoDB\n");
+
+    // 6. Import des users
+    const results = { created: [], errors: [], skipped: [] };
+
+    console.log("📥 Import en cours...\n");
+
+    for (let i = 0; i < users.length; i++) {
+      const user = users[i];
+      const progress = `[${i + 1}/${users.length}]`;
+
+      try {
+        // Validation email
+        if (!user.email || !user.email.includes('@')) {
+          console.log(`${progress} ⚠️  Email invalide: ${user.name}`);
+          results.errors.push({ name: user.name, error: "Email invalide" });
+          continue;
+        }
+
+        // Vérifier si email existe déjà
+        const existing = await db.collection("users").findOne({ email: user.email });
+
+        if (existing) {
+          console.log(`${progress} ⏭️  Ignoré (existe déjà): ${user.email}`);
+          results.skipped.push(user.email);
+          continue;
+        }
+
+        // Insérer le user
+        const result = await db.collection("users").insertOne(user);
+
+        // Créer la balance initiale
+        await db.collection("balances").insertOne({
+          user: result.insertedId,
+          tokenCredits: 3000000,
+          autoRefillEnabled: false,
+          lastRefill: new Date(),
+          refillAmount: 0,
+          refillIntervalUnit: "month",
+          refillIntervalValue: 1,
+          __v: 0,
+        });
+
+        console.log(`${progress} ✅ Créé: ${user.prenom} ${user.nom} (${user.email})`);
+        results.created.push(user.email);
+
+      } catch (error) {
+        console.error(`${progress} ❌ Erreur: ${user.email} - ${error.message}`);
+        results.errors.push({ email: user.email, error: error.message });
+      }
+    }
+
+    // 7. Fermer la connexion
+    await client.close();
+
+    // 8. Résumé final
+    console.log("\n" + "=".repeat(60));
+    console.log("📊 RÉSUMÉ DE L'IMPORT");
+    console.log("=".repeat(60));
+    console.log(`✅ Utilisateurs créés: ${results.created.length}`);
+    console.log(`⏭️  Utilisateurs ignorés (déjà existants): ${results.skipped.length}`);
+    console.log(`❌ Erreurs: ${results.errors.length}`);
+    console.log("=".repeat(60));
+
+    if (results.errors.length > 0) {
+      console.log("\n⚠️  DÉTAIL DES ERREURS:");
+      results.errors.forEach(e => {
+        console.log(`  - ${e.email || e.name}: ${e.error}`);
+      });
+    }
+
+    console.log("\n✨ Import terminé !\n");
+
+  } catch (error) {
+    console.error("\n❌ ERREUR FATALE:", error.message);
+    console.error(error);
+    process.exit(1);
+  }
+
+  process.exit(0);
+}
+
+// Lancer l'import
+importUsers();