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.

services/backup-scheduler.ts

@@ -70,7 +70,9 @@ export class BackupScheduler {
       console.log('🔄 Starting scheduled backup...');
       const result = await backupService.createBackup('automatic');
       
-      if (result.status === 'success') {
+      if (result === null) {
+        console.log('⏭️ Scheduled backup skipped: no changes detected');
+      } else if (result.status === 'success') {
         console.log(`✅ Scheduled backup completed: ${result.filename}`);
       } else {
         console.error(`❌ Scheduled backup failed: ${result.error}`);