Simplify LTC to its one working source — the built-in audio listener — and
make the admin UI reflect it.
Module:
- Remove the stage-display websocket source (stage-ws.js, stagePassword)
and the /v1/timecode/status API probe — both dead on ProPresenter 21.4.
- Remove the remote-reader ingest (POST /ltc, ingestToken, tools/
ltc-reader.js): the module owns LTC end to end now. The decoder selftest
moves to modules/propresenter-timers/ltc.selftest.js so the engine stays
covered.
- composeLtc collapses to the listener: running/stopped/nosignal, or a
clear note when disabled / no device / capture failed / starting.
- Manifest: ltcEnabled is now a `switch`; ltcDevice and ltcChannel carry
showWhen:"ltcEnabled"; ProPresenter and LTC fields carry `group` labels.
Shell (admin) — backward-compatible additions, coordinate with the shell lane:
- New `switch` field type (boolean shown as the enable-toggle control).
- `group`: consecutive fields render under a labeled subsection.
- `showWhen: "<key>"`: a field is shown only while that boolean/switch is
on (and actually collapses — .field[hidden] override, since .field's
display:flex outranks the [hidden] UA default).
- applyConfigPatch coerces `switch` as boolean. Documented in MODULE-GUIDE.
Verified: engine selftest (29 checks); listener decodes BlackHole loopback
(running 30fps, ageMs); device picker lists inputs; POST /ltc now 404s;
admin shows two labeled groups, the switch, and device/channel appearing
only when the switch is on (computed display none↔flex confirmed).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
