Cherry-pick latest 4 JianyuLi01 commits from release/v0.17.0rc1 onto release/v0.19.0rc1#2

JianyuLi01 merged 3 commits into

mainJianyuLi01/vllm-omni:mainfrom

copilot/port-latest-commits-to-v0190rcJianyuLi01/vllm-omni:copilot/port-latest-commits-to-v0190rcCopy head branch name to clipboard