feat: Add functionality to move inventory items to pantry and enhance pantry management

- Implemented moveInventoryItemToPantry method in InventoryRepository to facilitate moving items from inventory to pantry.
- Enhanced InventoryScreen with a new header section providing context about the inventory.
- Added a button in SwipeableInventoryTile to move items to pantry with appropriate error handling.
- Introduced movePantryItemToInventory method in PantryRepository to support moving items back to inventory.
- Refactored PantryScreen to rename _addToInventory to _moveToInventory for clarity and updated UI to reflect changes.
- Added AdminPantryItem model to represent pantry items in the admin panel.
- Created AdminPantryPanel for managing pantry items, including moving items to inventory and listing users.
- Developed AdminPrivateProductsPanel for managing private products, allowing promotion to global products.

flutter/lib/features/admin/presentation/admin_ai_panel.dart

@@ -55,26 +55,54 @@ class _AdminAiPanelState extends ConsumerState<AdminAiPanel> {
     final theme = Theme.of(context);
     if (_isLoading) return const Center(child: CircularProgressIndicator());
     if (_error != null) {
-      return Center(
-        child: Column(
-          mainAxisSize: MainAxisSize.min,
-          children: [
-            Text(_error!, style: TextStyle(color: theme.colorScheme.error)),
-            const SizedBox(height: 16),
-            FilledButton(onPressed: _load, child: Text(context.l10n.retryAction)),
-          ],
-        ),
+      return buildCopyableErrorPanel(
+        context: context,
+        message: _error!,
+        onRetry: _load,
+        title: 'Kunde inte läsa AI-modeller',
       );
     }
 
     return Column(
       crossAxisAlignment: CrossAxisAlignment.start,
       children: [
-        Text(
-          context.l10n.adminAiDescription,
-          style: theme.textTheme.bodyMedium,
+        Card(
+          child: Padding(
+            padding: const EdgeInsets.all(16),
+            child: Column(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                Text('AI', style: theme.textTheme.titleMedium),
+                const SizedBox(height: 8),
+                Text(
+                  context.l10n.adminAiDescription,
+                  style: theme.textTheme.bodyMedium,
+                ),
+                const SizedBox(height: 8),
+                const Wrap(
+                  spacing: 8,
+                  runSpacing: 8,
+                  children: [
+                    Chip(label: Text('Models')),
+                    Chip(label: Text('Access')),
+                    Chip(label: Text('Trigger')),
+                  ],
+                ),
+              ],
+            ),
+          ),
         ),
         const SizedBox(height: 12),
+        if (_models.isEmpty)
+          Card(
+            child: Padding(
+              padding: const EdgeInsets.all(16),
+              child: Text(
+                'Inga AI-modeller hittades.',
+                style: theme.textTheme.bodyMedium,
+              ),
+            ),
+          ),
         ..._models.map(
           (model) => Card(
             child: Padding(