feat: complete Phase 3 of service refactoring

- Marked tasks in `TODO.md` as completed for moving backup-related files to the `data-management` directory and correcting imports across the codebase.
- Updated imports in `backup-manager.ts`, API routes, and various components to reflect the new structure.
- Removed obsolete `backup.ts` and `backup-scheduler.ts` files to streamline the codebase.
- Added new tasks in `TODO.md` for future cleaning and organization of service imports.

src/app/api/backups/[filename]/route.ts

@@ -1,5 +1,5 @@
 import { NextRequest, NextResponse } from 'next/server';
-import { backupService } from '@/services/backup';
+import { backupService } from '@/services/data-management/backup';
 
 interface RouteParams {
   params: Promise<{

src/app/api/backups/route.ts

@@ -1,6 +1,6 @@
 import { NextRequest, NextResponse } from 'next/server';
-import { backupService } from '@/services/backup';
-import { backupScheduler } from '@/services/backup-scheduler';
+import { backupService } from '@/services/data-management/backup';
+import { backupScheduler } from '@/services/data-management/backup-scheduler';
 
 export async function GET(request: NextRequest) {
   try {

src/app/settings/advanced/page.tsx

@@ -1,7 +1,7 @@
 import { tasksService } from '@/services/tasks';
 import { tagsService } from '@/services/tags';
-import { backupService } from '@/services/backup';
-import { backupScheduler } from '@/services/backup-scheduler';
+import { backupService } from '@/services/data-management/backup';
+import { backupScheduler } from '@/services/data-management/backup-scheduler';
 import { AdvancedSettingsPageClient } from '@/components/settings/AdvancedSettingsPageClient';
 
 // Force dynamic rendering for real-time data

src/app/settings/backup/page.tsx

@@ -1,6 +1,6 @@
 import BackupSettingsPageClient from '@/components/settings/BackupSettingsPageClient';
-import { backupService } from '@/services/backup';
-import { backupScheduler } from '@/services/backup-scheduler';
+import { backupService } from '@/services/data-management/backup';
+import { backupScheduler } from '@/services/data-management/backup-scheduler';
 
 // Force dynamic rendering pour les données en temps réel
 export const dynamic = 'force-dynamic';

src/clients/backup-client.ts

@@ -1,5 +1,5 @@
 import { httpClient } from './base/http-client';
-import { BackupInfo, BackupConfig } from '@/services/backup';
+import { BackupInfo, BackupConfig } from '@/services/data-management/backup';
 
 export interface BackupListResponse {
   backups: BackupInfo[];

src/components/settings/BackupSettingsPageClient.tsx

@@ -2,7 +2,7 @@
 
 import { useState, useEffect } from 'react';
 import { backupClient, BackupListResponse } from '@/clients/backup-client';
-import { BackupConfig } from '@/services/backup';
+import { BackupConfig } from '@/services/data-management/backup';
 import { Button } from '@/components/ui/Button';
 import { Card, CardHeader, CardContent } from '@/components/ui/Card';
 import { Input } from '@/components/ui/Input';

src/services/core/system-info.ts

@@ -125,7 +125,7 @@ export class SystemInfoService {
   private static async getBackupCount(): Promise<number> {
     try {
       // Import dynamique pour éviter les dépendances circulaires
-      const { backupService } = await import('../backup');
+      const { backupService } = await import('../data-management/backup');
       const backups = await backupService.listBackups();
       return backups.length;
     } catch (error) {

src/services/data-management/backup.ts

@@ -1,8 +1,8 @@
 import { promises as fs } from 'fs';
 import path from 'path';
-import { prisma } from './core/database';
-import { userPreferencesService } from './core/user-preferences';
-import { BackupUtils } from '../lib/backup-utils';
+import { prisma } from '../core/database';
+import { userPreferencesService } from '../core/user-preferences';
+import { BackupUtils } from '../../lib/backup-utils';
 import { getToday } from '@/lib/date-utils';
 
 export interface BackupConfig {