Added the check for reserved model uid like "instances", "prompts" etc.

Because if you use these name, it will conflict with describe model function.

xinference/core/supervisor.py

@@ -57,6 +57,8 @@
 
 ASYNC_LAUNCH_TASKS = {}  # type: ignore
 
+RESERVED_MODEL_UIDS = ["prompts", "families", "vllm-supported", "instances"]
+
 
 def callback_for_async_launch(model_uid: str):
     ASYNC_LAUNCH_TASKS.pop(model_uid, None)
@@ -747,6 +749,11 @@ async def launch_builtin_model(
 
         if model_uid is None:
             model_uid = self._gen_model_uid(model_name)
+        else:
+            if model_uid in RESERVED_MODEL_UIDS:
+                raise ValueError(
+                    f"Model uid cannot be the reserved name: '{model_uid}'."
+                )
 
         model_size = str(model_size_in_billions) if model_size_in_billions else ""
         logger.debug(