Merge pull request 'Timers 1.5.1: a failed capture-tool build must not park the listener forever' (#30) from claude/timers-build-retry into main

Found live on AB: the build failed (its CLT is broken), the compiled
binary was then copied in by hand — and the listener never noticed. It
had seen 'build in flight' and stopped scheduling retries, waiting for
ensureCaptureBinary's onReady, which only fires on SUCCESS. The tile said
'Capture tool building…' indefinitely with a working binary on disk; only
a module remount recovered it.

onReady stays as the fast path; the 30 s retry now stays armed in every
not-ready state, so a failed build keeps re-checking and a binary that
arrives from outside (scp'd to a machine that can't compile) is picked up
within half a minute.

Reproduced the exact shape in a swiftc-less environment: build fails,
binary copied in at 3 s, retry at 30 s spawns it (the capture's own
unknown-device answer proves the real binary ran) — previously a
permanent deadlock.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

modules/propresenter-timers/ltc-listener.js

@@ -191,9 +191,13 @@ function createLtcListener({ device, channel, moduleDir, log, onUpdate }) {
     });
     if (!tool.ready) {
       report({ error: tool.error, detail: tool.detail });
-      // A build in flight restarts us itself when it lands; anything else is
-      // config-shaped and should back off hard rather than spin.
-      if (tool.error !== TOOL_BUILDING) scheduleRestart(BAD_CONFIG_RETRY_MS);
+      // onReady is only the FAST path (a successful build restarts us at
+      // once). The slow retry must stay armed regardless: a failed build
+      // never calls back, and a binary can also arrive from outside — scp'd
+      // in on a machine whose toolchain can't build (AB's broken CLT).
+      // Waiting on onReady alone deadlocked exactly that way in production:
+      // "Capture tool building…" forever, with a working binary on disk.
+      scheduleRestart(BAD_CONFIG_RETRY_MS);
       return;
     }
 

modules/propresenter-timers/module.json

@@ -1,7 +1,7 @@
 {
   "id": "propresenter-timers",
   "name": "Timers",
-  "version": "1.5.0",
+  "version": "1.5.1",
   "proddash": ">=1.4.0",
   "description": "Timers, Clocks, and LTC From configured Modules",
   "provides": [