disagg: Disagg write filecache for compaction tasks (release-nextgen-20251011)#10940

JaySon-Huang wants to merge 19 commits into

pingcap:release-nextgen-20251011pingcap/tiflash:release-nextgen-20251011from

JaySon-Huang:ng_2510_disagg-write-filecacheJaySon-Huang/tiflash:ng_2510_disagg-write-filecacheCopy head branch name to clipboard