feat: enhance backup management in AdvancedSettingsPage

- Added backup management functionality to `AdvancedSettingsPageClient`, including creating and verifying backups.
- Updated `package.json` with new backup-related scripts.
- Improved UI to display backup status and next scheduled backup time.
- Updated `.gitignore` to exclude backup files.
- Enhanced server-side data fetching to include backup data and database statistics.

package.json

@@ -6,7 +6,14 @@
     "dev": "next dev --turbopack",
     "build": "next build --turbopack",
     "start": "next start",
-    "lint": "eslint"
+    "lint": "eslint",
+    "backup:create": "npx tsx scripts/backup-manager.ts create",
+    "backup:list": "npx tsx scripts/backup-manager.ts list",
+    "backup:verify": "npx tsx scripts/backup-manager.ts verify",
+    "backup:config": "npx tsx scripts/backup-manager.ts config",
+    "backup:start": "npx tsx scripts/backup-manager.ts scheduler-start",
+    "backup:stop": "npx tsx scripts/backup-manager.ts scheduler-stop",
+    "backup:status": "npx tsx scripts/backup-manager.ts scheduler-status"
   },
   "dependencies": {
     "@dnd-kit/core": "^6.3.1",
@@ -35,6 +42,7 @@
     "eslint-plugin-prettier": "^5.5.4",
     "prettier": "^3.6.2",
     "tailwindcss": "^4",
+    "tsx": "^4.19.2",
     "typescript": "^5"
   }
 }