docs(status): five buckets settled, the rehearsal is the only one still open

Rebuilt for Wed 23. Audio, surface and observability all moved this morning:
the laptop card is back on HiFi and the NVIDIA pin is retired, the LCXL3
driver's 1077 silent failures are explained and surface-state.json is live for
the first time, and the MIDI log binds a port at last after nine dead sessions.

The countdown computes from the real clock at every stop, so the page cannot
go stale into the gig; checked at five instants from today through three days
after.