Add fastgpt as seperate assistant mode

engine/tests/test_backend_adapters.py

@@ -283,6 +283,30 @@ def test_translate_agent_schema_maps_volcengine_fields():
     }
 
 
+def test_translate_agent_schema_maps_llm_app_id():
+    payload = {
+        "agent": {
+            "llm": {
+                "provider": "fastgpt",
+                "model": "fastgpt",
+                "api_key": "llm-key",
+                "api_url": "https://cloud.fastgpt.cn/api",
+                "app_id": "app-fastgpt-123",
+            },
+        }
+    }
+
+    translated = LocalYamlAssistantConfigAdapter._translate_agent_schema("assistant_demo", payload)
+    assert translated is not None
+    assert translated["services"]["llm"] == {
+        "provider": "fastgpt",
+        "model": "fastgpt",
+        "apiKey": "llm-key",
+        "baseUrl": "https://cloud.fastgpt.cn/api",
+        "appId": "app-fastgpt-123",
+    }
+
+
 @pytest.mark.asyncio
 async def test_backend_mode_disabled_uses_local_assistant_config_even_with_url(monkeypatch, tmp_path):
     class _FailIfCalledClientSession: