chore: clean up codebase for production readiness

- Remove all console.log/debug statements from production code
- Add NODE_ENV checks for development-only logging
- Remove test scripts (test-feedback, test-image-security, test-backup-*, test-restore)
- Remove one-time fix scripts (fix-temp-photos, fix-migration-state, mark-migration-applied)
- Remove sensitive files (.env.backup, ADMIN_CREDENTIALS.txt)
- Update package.json to remove references to deleted scripts
- Replace console statements with logger utility in backend
- Secure error boundaries to not expose stack traces in production

This makes the codebase production-ready with no debug output or test scripts.

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

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

frontend/src/components/gallery/GalleryLayout.tsx

@@ -29,6 +29,7 @@ interface GalleryLayoutProps {
   showDownloadAll?: boolean;
   onDownloadAll?: () => void;
   isDownloading?: boolean;
+  isExpired?: boolean;
   headerExtra?: React.ReactNode;
   menuButton?: React.ReactNode;
   children: React.ReactNode;
@@ -42,6 +43,7 @@ export const GalleryLayout: React.FC<GalleryLayoutProps> = ({
   showDownloadAll = false,
   onDownloadAll,
   isDownloading = false,
+  isExpired = false,
   headerExtra,
   menuButton,
   children,