docs(04): plan-phase closure — 3 cosmetic advisories from checker iter-2 resolved

Plan-checker iter-2 returned VERIFICATION PASSED with 3 cosmetic advisories:
- Dim 11: RESEARCH.md "## Open Questions" missing "(RESOLVED)" suffix → fixed
- Dim 12: PATTERNS.md:886 stale dispatchSaveArchiveForA33 example → added
  DEPRECATED banner citing Plan 04-04 REVISION iter-2 Option B canonical pattern
- VALIDATION.md frontmatter "4 revised tasks" mismatched per-task map (5 rows) → fixed

All 4 BLOCKER+WARNING issues from iter-1 verified resolved by iter-2 plan-checker
(VERIFICATION PASSED). 3 cosmetic items now resolved as well. 2 advisory items
left as-is per iter-1 (W2 scope-sanity at 04-06; W3 conservative 04-03 dep).

Phase 4 plans cleared for execution:
- 7 plans across 6 waves (Wave 1: 04-01+04-02 parallel; Waves 2-6 single-plan)
- Plan-checker iter-2 VERIFICATION PASSED
- Test baselines preserved: vitest 171/171 · UAT harness 33/33 · Tier-1 12

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

.planning/phases/04-harden-clean-up-optional/04-PATTERNS.md

@@ -881,6 +881,15 @@ export async function driveA33(
   await new Promise((res) => setTimeout(res, A33_NEW_SW_BOOT_MS));
 
   // Step 5: dispatch SAVE_ARCHIVE — wakes SW back up as an event
+  // ⚠ DEPRECATED iter-2 (2026-05-21) — `__mokoshHarness.dispatchSaveArchiveForA33` does NOT exist
+  //   on the harness surface (verified: grep extension-page-harness.ts:4018 confirms
+  //   __mokoshHarness.{assertA1..A31, getManifestVersion} only). Per Plan 04-04 REVISION
+  //   iter-2 (Option B), dispatch SAVE_ARCHIVE inline via:
+  //     const saveResult = await page.evaluate(() => new Promise((resolve) => {
+  //       chrome.runtime.sendMessage({ type: 'SAVE_ARCHIVE' }, (ack) => resolve(ack));
+  //     }));
+  //   Matches 9 existing assertA* methods (A5/A11/A12/A13/A26/A28/A29/A30/A31).
+  //   See 04-04-PLAN.md <interfaces> for the canonical pattern.
   const saveResult = await page.evaluate(() => {
     const harness = (window as any).__mokoshHarness;
     return harness.dispatchSaveArchiveForA33();