fix: app create raise error when no available model providers (#1921)

api/controllers/console/app/app.py

                     model_type=ModelType.LLM
                 )
             except ProviderTokenNotInitError:
-                raise ProviderNotInitializeError(
-                    f"No Default System Reasoning Model available. Please configure "
-                    f"in the Settings -> Model Provider.")
+                model_instance = None
 
-            if not model_instance:
-                raise ProviderNotInitializeError(
-                    f"No Default System Reasoning Model available. Please configure "
-                    f"in the Settings -> Model Provider.")
-            else:
+            if model_instance:
                 model_dict = app_model_config.model_dict
                 model_dict['provider'] = model_instance.provider
                 model_dict['name'] = model_instance.model

api/core/provider_manager.py

                                 Provider.tenant_id == tenant_id,
                                 Provider.provider_name == provider_name,
                                 Provider.provider_type == ProviderType.SYSTEM.value,
-                                Provider.quota_type == ProviderQuotaType.TRIAL.value,
-                                Provider.is_valid == True
+                                Provider.quota_type == ProviderQuotaType.TRIAL.value
                             ).first()
 
+                            if provider_record and not provider_record.is_valid:
+                                provider_record.is_valid = True
+                                db.session.commit()
+
                         provider_name_to_provider_records_dict[provider_name].append(provider_record)
 
         return provider_name_to_provider_records_dict