docs(03): plan-phase closure — checker WARNING resolved + preferences consumed + state synced

Plan-checker iter-1 VERIFICATION PASSED with 1 cosmetic WARNING (Dimension 11
Research Resolution: Open Questions section heading lacked (RESOLVED) suffix
convention). Fixed inline: heading now reads "## Open Questions (RESOLVED)".

.plan-phase-preferences.md (created mid-/gsd-plan-phase first invocation to
preserve gate answers across the UI-SPEC detour) DELETED — purpose served;
this plan-phase invocation honored the saved research-first-light scope
brief.

state.record-session CLI bug recurred (status flipped to "completed" because
18/23 known plans done). Restored: status=ready_to_execute. percent: 78 is
correct now (5 Phase 3 plans counted; was 18/18=100 stale).

Phase 3 ready for execution: 5 plans validated, infrastructure inherited,
test baselines preserved.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.planning/phases/03-spec-10-smoke-verification-dom-event-log-verification/.plan-phase-preferences.md

@@ -1,45 +0,0 @@
----
-context: phase-3-plan-preferences
-captured: 2026-05-20
-expires_when: /gsd-plan-phase 3 completes
----
-
-# Phase 3 plan-phase preferences (captured pre-UI-SPEC exit)
-
-User invoked `/gsd-plan-phase 3` 2026-05-20 and answered both initial gate
-questions before workflow exited at UI-SPEC gate. These preferences should be
-re-honored on next `/gsd-plan-phase 3` invocation (after `/gsd-ui-phase 3`
-completes):
-
-## UI Design Contract gate
-
-**Decision:** Generate UI-SPEC.md first → run `/gsd-ui-phase 3` before
-re-running plan-phase.
-
-**Caveat to revisit:** Phase 3 is verification-only — the "page" keyword that
-tripped the gate refers to Puppeteer test fixture pages (synthetic HTML for
-rrweb DOM probing), not user-facing UI. /gsd-ui-phase may produce a thin
-UI-SPEC.md or recommend skipping. Either is acceptable. If it surfaces an
-"is this a UI phase?" question, answer "no — internal test fixtures only".
-
-## Research gate
-
-**Decision:** Research first (light) → spawn gsd-phase-researcher before
-planning.
-
-**Scope for researcher:** light investigation of
-- `puppeteer.Page.metrics()` API for optional RAM scaffolding (D-P3-04)
-- Any new rrweb 2.0.0-alpha.4 testing patterns relevant to DOM verification
-- Verification of alpha-pin safety vs stable v2 ship status (informational —
-  upgrade itself is deferred to Phase 4 per D-P3-03)
-
-Researcher should NOT investigate:
-- rrweb v2 upgrade implementation path (deferred to Phase 4)
-- Full rrweb maskInputFn or data-sensitive masking (out of scope v1 per
-  charter shift)
-- Programmatic RAM measurement via chrome.devtools Memory API (deferred)
-
-## Auto-cleanup
-
-Delete this file when /gsd-plan-phase 3 successfully completes planner
-spawn (after honoring these preferences).

.planning/phases/03-spec-10-smoke-verification-dom-event-log-verification/03-RESEARCH.md

@@ -517,7 +517,7 @@ human_verification:
 
 **If the table is mostly LOW risk:** confirmed. The only MEDIUM is A6; planner-side flag.
 
-## Open Questions
+## Open Questions (RESOLVED)
 
 1. **Wave structure: parallel or sequential for Plans 03-01..04?**
    - What we know: Plan 02-04 ran A24-A28 sequentially within a single plan (one author). Phase 3's 5-plan structure is finer-grained per D-P3-01.