[Feature] Add Muse Glimmer model support (#34262)

Co-authored-by: sglang-bot <232288953+sglang-bot@users.noreply.github.com>
Co-authored-by: Brayden Zhong <brayden.zhong@radixark.ai>
Co-authored-by: Jimmy Shong <69131491+Jiminator@users.noreply.github.com>
Co-authored-by: hnyls2002 <lsyincs@gmail.com>
Co-authored-by: Alex Nails <alex.nails@radixark.ai>
Co-authored-by: Liangsheng Yin <hnyls2002@gmail.com>

python/sglang/srt/entrypoints/http_server.py

@@ -2196,6 +2196,7 @@ def _execute_server_warmup(server_args: ServerArgs):
     is_vlm = (
         bool(model_info.get("has_image_understanding", False))
         and not server_args.language_only
+        and not server_args.language_model_only
         and not is_mps()
     )
     if model_info["is_generation"]: