[PD][Core] Fix Mamba prefix cache hit rate in PD disaggregation#44243

NickLucche merged 9 commits into

vllm-project:mainvllm-project/vllm:mainfrom

ZhanqiuHu:zhanqiu/fix-pd-mamba-prefix-cacheZhanqiuHu/vllm:zhanqiu/fix-pd-mamba-prefix-cacheCopy head branch name to clipboard