Record the long-form pipeline measurements, rollout and VAD model (D-WS3a, D-WS3b)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

docs/WorkBreakdown.md

@@ -372,6 +372,16 @@ Found while bootstrapping agent docs (D-036); all fixed on 2026-10-29.
       — Light theme via tokens + self-hosted Inter (D-037). Also fixed: the
       Backend select overflowed its panel on 390 px-wide phones.
 
+Found while building the long-form pipeline (spec 001 Goal 3, D-WS3a), 2026-10-29:
+- [ ] "Auto-detect" on the default (chunked) file path does not detect: with no
+      `language`, Transformers.js 4.2 logs "No language specified - defaulting to
+      English" and decodes Danish audio as an English translation (da_festuge WER
+      0.94 vs 0.14 with `da`). Long-form ("Skip silence") detects once and pins
+      the language; the chunked path is unchanged.
+- [ ] Spec 001's measurement fallback mentions a hint list of the names in
+      `en_alien`'s reference; `tests/meetingFixture.ts` returns audio + reference
+      only. Add the list when the vocabulary hint (workstream 2) lands.
+
 ## Recurring
 - [ ] Maintain `AGENTS.md`:
   - **Add a rule only in response to a real failure.** When an agent repeatedly