PLN, 2026-09-25: "a better 'tableau de bord' to confirm all is armed".

The Bridge answered liveness: units active, processes alive, surface
connected. On 2026-09-24 all of that was green while Tidal 08 was
unarmed, gig-log's MIDI lens held a dead subscription and the black box
had never run. None of those are liveness questions, so no number of
green process dots could have shown them.

The panel renders tools/check-gig.py --json and decides nothing itself.
Severity, wording and — the part that matters on a screen — the FIX all
come from the probe that owns the question, so a probe added to check-gig
appears here for free. A bespoke "armed" tile would have been a third
place the truth lives, which is the failure this rig keeps paying for.

Read-only by construction: check-gig is fenced by gig_gate.mutations()
and tested for it, so unlike RIG UP this button changes nothing and makes
no sound. It runs off the request thread like _Converge, because the repo
layer takes ~40s and holding a poll open reads as a hung dashboard.

Also: two failing rows said nothing useful. gig_gate._detail() shows a
probe's LAST line, and check-mix ended on a paragraph — so the dashboard
read "is tools/gig_record.sh." and "which looks exactly like Tidal
emitting nothing. It isn't." Both now end on the fact: "1 orbit(s) NOT
ARMED — Tidal 08" and "9 route(s) cannot be heard — Tidal 02, ...". A
verdict is read standing up, in a field.

Verified against a throwaway instance on a spare port: 43 checks, NO-GO,
ardour armed at the top naming Tidal 08.