[Ckpt Engine] feat: new sglang entrypoint support for update#12216

hnyls2002 merged 7 commits intosgl-project:mainsgl-project/sglang:mainfrom

openanolis:mateng/add_ckpt_engine_update_entrypoint_supportopenanolis/sglang:mateng/add_ckpt_engine_update_entrypoint_supportCopy head branch name to clipboard