feat(03): plans 01-05 — Phase 3 SPEC §10 smoke + DOM/event-log verification

5 plans across 5 waves (Wave 2 sequential per RESEARCH Pitfall 6 file overlap):
- 03-01 Wave 1: rrweb DOM verification harness extension (A29; REQ-rrweb-dom-buffer; §10 #4)
- 03-02 Wave 2: event-log verification harness extension (A30; REQ-user-event-log; §10 #5)
- 03-03 Wave 3: §10 #8 password-filter PARTIAL verification (A31; D-P3-02 charter)
- 03-04 Wave 4: §10 #9 RAM ceiling best-effort + Page.metrics scaffolding (A32; D-P3-04)
- 03-05 Wave 5: §10 sweep VERIFICATION.md + REQUIREMENTS/ROADMAP/STATE marker flips
  (REQ-install-clean + REQ-rrweb-dom-buffer + REQ-user-event-log)

Each plan has:
- frontmatter (wave + depends_on + files_modified + autonomous + requirements + tags + must_haves)
- tasks with mandatory <read_first> + <acceptance_criteria> + concrete <action>
- <threat_model> block per security gate
- Validation map row(s) added to 03-VALIDATION.md (10 tasks total)

Expected UAT growth: 29/29 → 33/33 GREEN (A29-A32 + 03-05 docs).
Expected vitest baseline preserved: 171/171.
Expected Tier-1 FORBIDDEN_HOOK_STRINGS: 12 (A29+ ride production surfaces only).

ROADMAP.md Phase 3 entry replaces "Plans: TBD" with full 5-plan list.
VALIDATION.md status: planner_filled (nyquist_compliant: true; wave_0_complete: true).

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

.planning/ROADMAP.md

@@ -212,7 +212,12 @@ per 2026-05-20 re-phasing.
   5. Background RAM consumption (measured via Chrome Task Manager) does not
      exceed 50 MB during a sustained recording session (CON-ram-ceiling).
 
-**Plans**: TBD
+**Plans**: 5 plans (03-01 through 03-05).
+- [ ] 03-01-PLAN.md — rrweb DOM verification harness extension (A29; SPEC §10 #4; REQ-rrweb-dom-buffer)
+- [ ] 03-02-PLAN.md — event-log verification harness extension (A30; SPEC §10 #5; REQ-user-event-log)
+- [ ] 03-03-PLAN.md — §10 #8 password-filter PARTIAL verification (A31; D-P3-02 charter)
+- [ ] 03-04-PLAN.md — §10 #9 RAM ceiling best-effort + Page.metrics scaffolding (A32; D-P3-04 charter)
+- [ ] 03-05-PLAN.md — §10 sweep VERIFICATION.md aggregator + REQUIREMENTS/ROADMAP/STATE marker flips
 
 ### Phase 4: Harden + clean up _(optional)_
 **Goal**: Eliminate the P1/P2 follow-ups identified in the audit so that the