fix: return wrong when init 0 quota in trial provider (#1394)

api/core/model_providers/model_provider_factory.py

@@ -211,6 +211,9 @@ class ModelProviderFactory:
                                 Provider.quota_type == ProviderQuotaType.TRIAL.value
                             ).first()
 
+                        if provider.quota_limit == 0:
+                            return None
+
                         return provider
 
             no_system_provider = True