[Misc] Fix error log for the diffusion stage timeout (#915)

Signed-off-by: samithuang <285365963@qq.com>
Signed-off-by: Samit <285365963@qq.com>
Signed-off-by: Hongsheng Liu <liuhongsheng4@huawei.com>
Co-authored-by: Hongsheng Liu <liuhongsheng4@huawei.com>
Co-authored-by: Jiangyun Zhu <riverclouds.zhu@qq.com>

vllm_omni/entrypoints/omni.py

@@ -345,6 +345,7 @@ class OmniBase:
         )
 
         suggestions = [
+            f"Ignore this warning if the model weight download / load from disk time is longer than {timeout}s.",
             "Verify GPU/device assignment in config (runtime.devices) is correct.",
             "Check GPU/host memory availability; reduce model or batch size if needed.",
             "Check model weights path and network reachability (if loading remotely).",
@@ -353,7 +354,7 @@ class OmniBase:
 
         formatted_suggestions = "\n".join(f"  {i + 1}) {msg}" for i, msg in enumerate(suggestions))
 
-        logger.error(f"[{self._name}] Stage initialization failed. Troubleshooting Steps:\n{formatted_suggestions}")
+        logger.warning(f"[{self._name}] Stage initialization timeout. Troubleshooting Steps:\n{formatted_suggestions}")
 
     def start_profile(self, stages: list[int] | None = None) -> None:
         """Start profiling for specified stages.