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multica/server/internal/daemon
xiawiie 93028d303b fix(daemon): reconcile in-flight task and workspace state on WS reconnect (#4718)
After a WebSocket disconnect, the daemon's view of running tasks and
workspace state can lag the server for up to 5s (per-task cancellation
poll) or 30s (workspace sync) because both loops park on coarse tickers
that do not observe the WS wakeup channel.

This change adds a small fan-out broadcaster (`reconcileBroadcaster`)
that the WS connect path fires once per (re)connect. `watchTaskCancellation`
and `workspaceSyncLoop` subscribe and re-check immediately on broadcast,
without disturbing the ticker cadence. The broadcaster is edge-triggered
with a one-slot replay so a broadcast that lands before a subscriber is
ready is not lost (closes the daemon-startup race), and back-to-back
broadcasts inside 1s are debounced so a flapping connection cannot fan
out into a request stampede.

Existing behaviour is preserved: shouldInterruptAgent still decides
whether to interrupt, the 5s/30s ticker still bounds the worst case,
and the WS heartbeat / HTTP heartbeat coordination is untouched.

Closes #4665
2026-06-30 13:50:18 +08:00
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