Add reliable cross-tab sync for canvas PUT updates - #88

Open

cxxxxxn (cxxxxxn) wants to merge 9 commits into

microsoft:mainfrom

cxxxxxn:sync-put-broadcast

Commits on Aug 12, 2026

feat(sync): add clientId/originatorClientId wire fields for P2 Plan A
cxxxxxn (cxxxxxn)
committed
89dc9d0
feat(sync): broadcast user PUT edits via diff + wrap PUT in canvas mutex (P2 Plan A)
cxxxxxn (cxxxxxn)
committed
34a1c65
feat(sync): mint per-tab clientId, send on PUT, filter self-echo (P2 Plan A)
cxxxxxn (cxxxxxn)
committed
ac6deb3
feat(sync): SSE heartbeat + client auto-reconnect with backoff (P2 Plan A)
cxxxxxn (cxxxxxn)
committed
7ce689e
test(sync): cover broadcastCanvasStatePut diff/publish/echo (P2 Plan A)
cxxxxxn (cxxxxxn)
committed
06facae
style(sync): fix import order in canvas.route
cxxxxxn (cxxxxxn)
committed
b07afaa
fix(sync): import CanvasNode from canvas-engine entrypoint in test
cxxxxxn (cxxxxxn)
committed
5f98156
fix(sync): use Huabu package imports in broadcast test
cxxxxxn (cxxxxxn)
committed
0e953ca
style(sync): apply Huabu formatting
cxxxxxn (cxxxxxn)
committed
81e11ba