Added simple /models endpoint to work with frontends that don't allow bypass check like Openweb-ui

ktransformers/server/api/openai/endpoints/chat.py

@@ -10,6 +10,14 @@ from ktransformers.server.backend.base import BackendInterfaceBase
 
 router = APIRouter()
 
+models = [
+    {"id": "0", "name": "ktranformers-model"},
+]
+
+@router.get('/models', tags=['openai'])
+async def list_models():
+    return models
+
 
 @router.post('/chat/completions', tags=['openai'])
 async def chat_completion(request:Request,create:ChatCompletionCreate):