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 <[email protected]>

frontend/src/utils/cleanupGalleryAuth.ts

@@ -2,7 +2,31 @@
 export const cleanupOldGalleryAuth = () => {
   // Remove old global gallery authentication
   localStorage.removeItem('gallery_event');
+  localStorage.removeItem('gallery_token'); // Remove old global token format
+  
+  // Remove any corrupted or old gallery tokens from localStorage
+  const keysToRemove: string[] = [];
+  for (let i = 0; i < localStorage.length; i++) {
+    const key = localStorage.key(i);
+    if (key && (key.startsWith('gallery_token') || key.startsWith('gallery_event'))) {
+      // Check if it's an old format token that might be corrupted
+      const value = localStorage.getItem(key);
+      if (value && (value.length < 100 || !value.includes('.'))) {
+        // Token is too short or doesn't contain dots (not a valid JWT)
+        keysToRemove.push(key);
+      }
+    }
+  }
+  
+  keysToRemove.forEach(key => {
+    localStorage.removeItem(key);
+    // Silently remove corrupted tokens
+  });
   
   // Remove old gallery token from cookies if it exists
   document.cookie = 'gallery_token=; expires=Thu, 01 Jan 1970 00:00:00 UTC; path=/;';
+  
+  // Also clear session storage
+  sessionStorage.removeItem('gallery_event');
+  sessionStorage.removeItem('gallery_token');
 };