feat(integrations): add dynamic OpenRouter model loading

- Remove hardcoded OPENROUTER_MODEL_CHOICES from openrouter.py
- Add API endpoint /integrations/openrouter/models/ to fetch models dynamically
- Models loaded from OpenRouter API with free models (':free') at top
- Update OpenRouterIntegration model_name field (remove choices, blank=True)
- Add async buildForm() with dynamic_choices support
- Show asterisks (********) for saved API keys with helpful placeholder

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

myproject/integrations/views.py

@@ -1,7 +1,10 @@
 import json
+import logging
 from django.views.generic import TemplateView
 from django.http import JsonResponse
-from django.views.decorators.http import require_POST
+from django.views.decorators.http import require_POST, require_GET
+
+logger = logging.getLogger(__name__)
 
 from user_roles.mixins import OwnerRequiredMixin
 from .models import RecommerceIntegration, WooCommerceIntegration, GLMIntegration, OpenRouterIntegration
@@ -181,6 +184,44 @@ def get_integration_service(integration_id: str, instance):
     return None
 
 
+@require_GET
+def get_openrouter_models(request):
+    """
+    GET /settings/integrations/openrouter/models/
+    Возвращает список моделей OpenRouter (бесплатные сверху)
+    """
+    import requests
+
+    try:
+        response = requests.get('https://openrouter.ai/api/v1/models', timeout=10)
+        response.raise_for_status()
+        data = response.json()
+
+        models = data.get('data', [])
+
+        # Разделить на бесплатные и платные
+        free_models = []
+        paid_models = []
+
+        for model in models:
+            model_id = model.get('id', '')
+            model_name = model.get('name', model_id)
+
+            if ':free' in model_id:
+                free_models.append({'id': model_id, 'name': f"{model_name} (Бесплатная)"})
+            else:
+                paid_models.append({'id': model_id, 'name': model_name})
+
+        # Бесплатные сверху
+        all_models = free_models + paid_models
+
+        return JsonResponse({'models': all_models})
+
+    except Exception as e:
+        logger.error(f"Error fetching OpenRouter models: {e}")
+        return JsonResponse({'error': str(e)}, status=500)
+
+
 class RecommerceBatchSyncView(TemplateView):
     """
     API View для запуска массовой синхронизации с Recommerce.
@@ -363,29 +404,33 @@ def get_form_fields_meta(model):
                     'label': getattr(field, 'verbose_name', field_name),
                     'help_text': getattr(field, 'help_text', ''),
                     'required': not getattr(field, 'blank', True),
-                    'type': 'text',  # default
+                    'type': 'password' if field_name == 'api_key' else 'text',
                 }
-
-                # Определить тип поля
-                if 'BooleanField' in field.__class__.__name__:
-                    field_info['type'] = 'checkbox'
-                elif 'URLField' in field.__class__.__name__:
-                    field_info['type'] = 'url'
-                elif 'secret' in field_name.lower() or 'token' in field_name.lower() or 'key' in field_name.lower():
-                    field_info['type'] = 'password'
-
                 fields.append(field_info)
-            elif field_name in ['model_name', 'temperature']:
+
+            elif field_name == 'temperature':
                 field = model._meta.get_field(field_name)
                 field_info = {
                     'name': field_name,
                     'label': getattr(field, 'verbose_name', field_name),
                     'help_text': getattr(field, 'help_text', ''),
                     'required': not getattr(field, 'blank', True),
-                    'type': 'select',  # dropdown
+                    'type': 'select',
                     'choices': getattr(field, 'choices', [])
                 }
+                fields.append(field_info)
 
+            elif field_name == 'model_name':
+                field = model._meta.get_field(field_name)
+                field_info = {
+                    'name': field_name,
+                    'label': getattr(field, 'verbose_name', field_name),
+                    'help_text': getattr(field, 'help_text', ''),
+                    'required': not getattr(field, 'blank', True),
+                    'type': 'select',
+                    'dynamic_choices': True,
+                    'choices_url': '/settings/integrations/openrouter/models/'
+                }
                 fields.append(field_info)
     # Для WooCommerce показываем только базовые поля для подключения
     elif model.__name__ == 'WooCommerceIntegration':