Tags: ssgzy/cherry-studio

P2 Step 3B-1 branch-safe reopen hydration infra

P2 Step 2D persisted highlight repaint accepted with same-session con…

…tinuity

P2 Step 2D-1 persisted anchor resolver implemented

P2 Step 2C read persisted branch anchors path implemented

P2 Step 2A write-on-keep accepted with unkeep cleanup

P2 Step 2 renderer branch_anchor connection layer accepted