feat(career): gigs frontend — poster, runner strip, summary, encore

Career v3, WS3 (frontend half), rebuilt cleanly on merged main (v3-a/b/c
in) after git interleaved the structurally-similar canvas functions:

- Book a gig from any opened passport: /gigs/propose renders as a GIG
  POSTER (venue presents GENRE NIGHT, numbered bill) with re-roll and
  Save/Copy poster (natively-drawn canvas via blob-io, audible failure
  paths, slash-safe filenames).
- Play the gig: venue override + Venue viz handoff, then
  playQueue.start(..., {source:'gig'}) — the queue's auto-advance runs
  the set; zero new playback machinery.
- Floating gig strip (body-level, pointer-events none, z 35 per the
  chrome invariant) tracks set position and names what's next.
- Completion = song:ended with an empty queue → POST /gigs → summary
  poster overlay with per-song accuracies; encore fires the crowd
  celebrate + confetti (reduced-motion: neither). song:stop with a dead
  queue = abandoned (no log); end-of-song teardown (queue still active)
  must NOT abandon.
- Gigs played render as dated rows in the passport book.

vm tests: runner advance/abandon semantics via the queue-state seam.

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

plugins/career/tests/passports.test.js

@@ -177,3 +177,24 @@ test('careerTotals / wall + dash card stay absent without commitment', () => {
     assert.equal(totals.seconds, 3720);
     assert.equal(totals.walls.length, 1);
 });
+
+test('gig runner lifecycle: advance on ended, abandon on dead-queue stop', () => {
+    const w = load();
+    const t = w.__careerPassportTest;
+    let remaining = 1;
+    w.feedBack = { playQueue: { remaining: () => remaining, active: () => remaining > 0 } };
+    t.setGigRun({
+        songs: [{ filename: 'a', title: 'A' }, { filename: 'b', title: 'B' }],
+        venue_id: null, genre: 'Soul', genre_key: 'soul', instrument: 'guitar', idx: 0,
+    });
+    // First song ends, one remains → the strip advances, no completion.
+    t.onGigSongEnded();
+    assert.equal(t.getGigRun().idx, 1);
+    // Stop while the queue is still active (end-of-song teardown) → run survives.
+    t.onGigSongStop();
+    assert.notEqual(t.getGigRun(), null);
+    // User quits: queue cleared → stop with a dead queue abandons (no log).
+    remaining = 0;
+    t.onGigSongStop();
+    assert.equal(t.getGigRun(), null);
+});