feat: enhance profile screen with tab navigation and admin panels

- Added tab navigation for profile, database, users, suggestions, and AI sections.
- Implemented database management with inventory, pantry, and products tabs.
- Created Admin AI panel to display AI model information.
- Introduced Admin Pending Products panel for managing product approvals.
- Developed Admin Users panel for user management, including role changes and password resets.
- Added data models for AI models and pending products.

flutter/lib/core/api/api_paths.dart

@@ -4,6 +4,12 @@ class AuthApiPaths {
 
 class ProductApiPaths {
   static const list = '/products';
+  static const pending = '/products/pending';
+  static String setStatus(int id) => '/products/$id/status';
+}
+
+class AiApiPaths {
+  static const models = '/ai/models';
 }
 
 class RecipeApiPaths {