✅ Fix model addition confirmation and display issues

- Add 2-second delay before page reload to show success notification
- Enhance success notifications with checkmark emoji and longer duration
- Add synchronous Firebase save methods for critical model addition operations
- Ensure newly added models appear immediately in provider sections
- Improve notification styling with better visibility and shadows
- Add debug logging for successful model additions

This resolves the issues where:
1. Success confirmations weren't visible due to immediate page reload
2. Newly added models weren't appearing in the interface

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

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

pages/admin/model_families.html

@@ -626,29 +626,35 @@ function updateProviderStats(provider) {
 function showNotification(message, type) {
     const notification = document.createElement('div');
     notification.className = `flash flash-${type}`;
-    notification.textContent = message;
     notification.style.position = 'fixed';
     notification.style.top = '20px';
     notification.style.right = '20px';
     notification.style.zIndex = '9999';
-    notification.style.padding = '10px 20px';
-    notification.style.borderRadius = '5px';
+    notification.style.padding = '15px 25px';
+    notification.style.borderRadius = '8px';
     notification.style.color = 'white';
-    notification.style.fontSize = '14px';
+    notification.style.fontSize = '16px';
+    notification.style.fontWeight = 'bold';
+    notification.style.boxShadow = '0 4px 12px rgba(0,0,0,0.3)';
     
     if (type === 'success') {
         notification.style.backgroundColor = '#28a745';
+        notification.innerHTML = '✅ ' + message;
     } else if (type === 'error') {
         notification.style.backgroundColor = '#dc3545';
+        notification.innerHTML = '❌ ' + message;
     } else if (type === 'info') {
         notification.style.backgroundColor = '#17a2b8';
+        notification.innerHTML = 'ℹ️ ' + message;
     }
     
     document.body.appendChild(notification);
     
+    // Success messages show longer
+    const duration = type === 'success' ? 5000 : 3000;
     setTimeout(() => {
         notification.remove();
-    }, 3000);
+    }, duration);
 }
 
 function showModal(modalId) {
@@ -717,8 +723,10 @@ document.getElementById('addModelForm').addEventListener('submit', function(e) {
         if (result.success) {
             showNotification(result.message, 'success');
             hideModal('addModelModal');
-            // Refresh the page to show the new model
-            location.reload();
+            // Show success message for 2 seconds before refresh
+            setTimeout(() => {
+                location.reload();
+            }, 2000);
         } else {
             const errorDiv = document.getElementById('addModelErrors');
             if (result.field_errors) {

src/services/model_families.py

@@ -370,6 +370,30 @@ class ModelFamilyManager:
             except Exception as e:
                 print(f"Failed to save model families to file: {e}")
     
+    def _save_configuration_sync(self):
+        """Save configuration synchronously (for critical operations like model addition)"""
+        config = {
+            'whitelisted_models': {
+                provider.value: list(models) 
+                for provider, models in self.whitelisted_models.items()
+            },
+            'last_updated': datetime.now().isoformat()
+        }
+        
+        if self.firebase_db:
+            try:
+                config_ref = self.firebase_db.child('model_families_config')
+                config_ref.set(config)
+                print("Saved model families config to Firebase (sync)")
+            except Exception as e:
+                print(f"Failed to save model families to Firebase (sync): {e}")
+        else:
+            try:
+                with open("model_families_config.json", 'w') as f:
+                    json.dump(config, f, indent=2)
+            except Exception as e:
+                print(f"Failed to save model families to file: {e}")
+    
     def is_model_whitelisted(self, provider: AIProvider, model_id: str) -> bool:
         """Check if a model is whitelisted for use"""
         with self.lock:
@@ -545,7 +569,7 @@ class ModelFamilyManager:
             if model_info.model_id in self.models:
                 return False
             
-            # Add the model
+            # Add the model to in-memory storage first
             self.models[model_info.model_id] = model_info
             
             # Auto-whitelist if requested
@@ -555,12 +579,13 @@ class ModelFamilyManager:
                     self.whitelisted_models[provider] = set()
                 self.whitelisted_models[provider].add(model_info.model_id)
             
-            # Save configuration
-            self._save_configuration()
+            # Save configuration (this ensures immediate persistence)
+            self._save_configuration_sync()
             
-            # Save custom models to Firebase/file
-            self._save_custom_models()
+            # Save custom models to Firebase/file  
+            self._save_custom_models_sync()
             
+            print(f"Successfully added custom model: {model_info.model_id} to provider {model_info.provider.value}")
             return True
     
     def remove_custom_model(self, model_id: str) -> bool:
@@ -673,6 +698,36 @@ class ModelFamilyManager:
             except Exception as e:
                 print(f"Failed to save custom models to file: {e}")
     
+    def _save_custom_models_sync(self):
+        """Save custom models synchronously (for critical operations like model addition)"""
+        custom_models = self.get_custom_models()
+        
+        # Convert to serializable format
+        models_data = []
+        for model in custom_models:
+            model_dict = asdict(model)
+            model_dict['provider'] = model.provider.value  # Convert enum to string
+            models_data.append(model_dict)
+        
+        config = {
+            'custom_models': models_data,
+            'last_updated': datetime.now().isoformat()
+        }
+        
+        if self.firebase_db:
+            try:
+                custom_models_ref = self.firebase_db.child('custom_models')
+                custom_models_ref.set(config)
+                print("Saved custom models to Firebase (sync)")
+            except Exception as e:
+                print(f"Failed to save custom models to Firebase (sync): {e}")
+        else:
+            try:
+                with open("custom_models.json", 'w') as f:
+                    json.dump(config, f, indent=2)
+            except Exception as e:
+                print(f"Failed to save custom models to file: {e}")
+    
     def _load_custom_models(self):
         """Load custom models from persistent storage"""
         if self.firebase_db: