docs(01): VERIFICATION + Phase 1 closure markers — goal-backward audit GREEN

gsd-verifier goal-backward audit (2026-05-20) returned GREEN verdict on
Phase 1 (Stabilize Video Pipeline + whole-desktop capture + as-automatic-
as-platform-allows recording start):

- 17/17 must-haves verified: 11 REQs/charters + 6 cross-cutting gates
- 14/14 plans complete (01-01..01-09 + 01-11 spike-pivot + 01-12 + 01-13
  + 01-14 + 01-10)
- 5 operator empirical acks: Plan 01-07 (Chrome playback 2026-05-15) +
  Plan 01-13 (harness 2026-05-19) + Plan 01-12 (brand-fit 2026-05-20) +
  Plan 01-10 cycle-2 ("All good" 2026-05-20) + Plan 01-10 brand-rename
  follow-up (2026-05-20)
- Test gates: vitest 153/153 GREEN; UAT harness 24/24 GREEN; Tier-1 grep
  gate 12 FORBIDDEN_HOOK_STRINGS; pre-checkpoint bundle gates PASS
- 7 P0 audit defects: 6 closed in-Phase-1-scope; P0 #6 (data-sensitive
  masking) properly deferred to Phase 2

Marker flips landed:

- STATE.md status reflects Phase 1 COMPLETE; completed_phases 0 → 1
- ROADMAP.md Phase 1 row [ ] → [x] with closure-arc summary
- REQUIREMENTS.md REQ-video-ring-buffer In-progress → Complete 2026-05-20
- VERIFICATION.md committed (orchestrator-bundle pattern per verifier
  protocol)

Forward-looking deferred (NOT gaps):
- Phase 2: REQ-rrweb-dom-buffer + REQ-user-event-log +
  REQ-password-confidentiality (audit P0 #6)
- Phase 5 hardening: getDisplayMedia cursor visibility; setimmediate
  polyfill new Function pre-existing; tabs permission gap; dark-surface
  logo contrast; 2 ffprobe/ffmpeg test flakes

Phase 2 (Stabilize DOM + event-capture privacy) kickoff pending.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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@@ -22,7 +22,7 @@ working export → green §10 smoke → harden + clean up**.
Decimal phases appear between their surrounding integers in numeric order.
- [ ] **Phase 1: Stabilize video pipeline** — Collapse offscreen duality, fix MediaRecorder shadow, fix WebM ring buffer playability, replace `chrome.tabCapture` with offscreen `getDisplayMedia` (AMENDED from original DEC-003). **Closed 2026-05-15 then REOPENED 2026-05-16**: the 2026-05-15 closure was based on insufficient operator playback verification; D-13's concat-of-self-contained-segments architecture produces a multi-EBML WebM that plays only ~9 s instead of ~30 s in standards-compliant parsers (mpv, ffmpeg, Chrome HTMLMediaElement). UAT Test 3 retest on 2026-05-16 confirmed via byte-level EBML probe. SPEC §10 #7 not actually satisfied. Plan 01-08 (WebM remux via ts-ebml + webm-muxer) replaces `mergeVideoSegments`'s file-concat with a real single-EBML remux. See `.planning/debug/d13-multi-ebml-concat-unplayable.md`. Option C port-lifecycle refactor (debug session `empty-archive-port-race`) DID land cleanly and is retained. Phase 1 will additionally absorb whole-desktop + auto-start UX work (Plans 01-09/01-10) per the 2026-05-16 amended charter.
- [x] **Phase 1: Stabilize video pipeline** — Collapse offscreen duality, fix MediaRecorder shadow, fix WebM ring buffer playability, replace `chrome.tabCapture` with offscreen `getDisplayMedia` (AMENDED from original DEC-003). **CLOSED 2026-05-20** via gsd-verifier goal-backward audit GREEN (17/17 must-haves: 11 REQs/charters + 6 cross-cutting gates; see `.planning/phases/01-stabilize-video-pipeline/01-VERIFICATION.md`). Closure arc: 2026-05-15 (Plan 01-07) → 2026-05-16 (REOPENED on D-13 multi-EBML bug) → Plan 01-08 (WebM remux via ts-ebml + webm-muxer) → Plans 01-09/01-10 (whole-desktop + welcome-tab UX) → Plan 01-11 (spike-pivot) → Plan 01-12 (Design Integration) → Plan 01-13 (UAT harness 15/15 GREEN, 2026-05-19) → Plan 01-14 (monitorTypeSurfaces picker) → Plan 01-10 cycle-2 ack 'All good' 2026-05-20 + 5 inter-cycle debug fixes + brand-rename polish. 14/14 plans; 5 operator acks; 153/153 vitest + 24/24 UAT + Tier-1 grep 12 FORBIDDEN_HOOK_STRINGS all GREEN.
- [ ] **Phase 2: Stabilize DOM + event capture privacy** — Migrate rrweb to v2 `maskInputFn`, plug `content/index.ts setupInputLogging` password leak
- [ ] **Phase 3: Stabilize export pipeline** — Restore user-activation gesture in popup, delete dead `permissions.request`, replace base64 `data:` URL with Blob URL minted in offscreen
- [ ] **Phase 4: SPEC §10 smoke verification** — End-to-end install-and-record-and-export pass against all 9 acceptance criteria