feat: enhance backup functionality and logging

- Updated `createBackup` method to accept a `force` parameter, allowing backups to be created even if no changes are detected.
- Added user alerts in `AdvancedSettingsPageClient` and `BackupSettingsPageClient` for backup status feedback.
- Implemented `getBackupLogs` method in `BackupService` to retrieve backup logs, with a new API route for accessing logs.
- Enhanced UI in `BackupSettingsPageClient` to display backup logs and provide a refresh option.
- Updated `BackupManagerCLI` to support forced backups via command line.

src/app/api/backups/route.ts

@@ -2,8 +2,21 @@ import { NextRequest, NextResponse } from 'next/server';
 import { backupService } from '@/services/backup';
 import { backupScheduler } from '@/services/backup-scheduler';
 
-export async function GET() {
+export async function GET(request: NextRequest) {
   try {
+    const { searchParams } = new URL(request.url);
+    const action = searchParams.get('action');
+
+    if (action === 'logs') {
+      const maxLines = parseInt(searchParams.get('maxLines') || '100');
+      const logs = await backupService.getBackupLogs(maxLines);
+      
+      return NextResponse.json({
+        success: true,
+        data: { logs }
+      });
+    }
+
     console.log('🔄 API GET /api/backups called');
     
     // Test de la configuration d'abord
@@ -51,7 +64,17 @@ export async function POST(request: NextRequest) {
 
     switch (action) {
       case 'create':
-        const backup = await backupService.createBackup('manual');
+        const forceCreate = params.force === true;
+        const backup = await backupService.createBackup('manual', forceCreate);
+        
+        if (backup === null) {
+          return NextResponse.json({ 
+            success: true, 
+            skipped: true, 
+            message: 'No changes detected since last backup. Use force=true to create anyway.' 
+          });
+        }
+        
         return NextResponse.json({ success: true, data: backup });
 
       case 'verify':