[SGL] sync patch: Remove sync points, prefill cudagraph for DP, disable cache reset in mem check#19190

hnyls2002 merged 2 commits intosgl-project:mainsgl-project/sglang:mainfrom

YazhiGao:leon/sync_srt_20260223YazhiGao/sglang:leon/sync_srt_20260223Copy head branch name to clipboard