stopAllPlayback->updateSfRouting->startTrackPlayback reroutes bridge sink
twice during bounce; each dest change previously called this.disconnect()
= BridgeAudioNode teardown + async worklet reload, audio swallowed into
_preBuffer (bounded 64 blocks) forever if worklet never reactivates ->
silent WAV (only old reverb tail). Fix: rely on BridgeAudioNode.connect()
re-pointing _gainNode (already handles dest switch without teardown);
init() only when not ready. Add __sfDiag ROUTE + BRIDGE_AUDIO (frames/
peak/path per sec) to verify at bounce end.
- NativeInstrumentEngine: track GM bank per channel (CC0/CC32), use bank in programChange
- app.jsx: send CC0/CC32+PROGRAM before notes via __ensureBridgeProgram, dedupe, clear dedupe after async LOAD
- audioRoutingEngine/bridgeAudioNode: idempotent connect (no disconnect-flush on re-connect), fixes note cut & multi-track stuck
- main.cpp: remove 10s poll in OPEN_GUI control job (blocked realtime loop, watchdog race), VstWindowProc stores channel not inst pointer, cleanup gui maps on WM_DESTROY