docs: record Prompt Museum main integration

.project-docs/30-worklog/tasks/20260818-museum-media-main-8c2d.md

@@ -22,14 +22,15 @@
 
 ## Outcome
 
-- Merged integration commit `22bee1d` into `main` with an explicit non-fast-forward merge; the final tree contains the Prompt Museum Main proxy, shared DTO, Renderer media conversion/page behavior, focused tests, and canonical state/evidence/commitment updates.
+- Merged integration commit `22bee1d` into `main` as commit `590ae13` with an explicit non-fast-forward merge; the final tree contains the Prompt Museum Main proxy, shared DTO, Renderer media conversion/page behavior, focused tests, and canonical state/evidence/commitment updates.
 - Removed only the intermediate integration task record from the merge result; this final task record is the canonical integration note.
 
 ## Verification
 
 - `git merge --no-ff --no-commit 22bee1d`: PASS; automatic merge had no conflicts.
-- Focused Prompt Museum verification inherited from the independently reviewed source: 3 files / 27 unit tests, typecheck, scoped ESLint, Vite build, targeted Electron E2E 1/1, `git diff --check`, and final Sol review PASS.
-- Main task-aware drift check and final clean-worktree check will run before releasing ownership.
+- Main rerun: `corepack pnpm exec vitest run` for the 3 Prompt Museum files — 27/27 PASS; `corepack pnpm run typecheck` — PASS; scoped ESLint over the eight owned source/test files — PASS.
+- Source/integration verification reviewed as read-only: Vite build, targeted Electron E2E 1/1, `git diff --check`, and final Sol review PASS.
+- `check_doc_drift.py --task-id 20260818-museum-media-main-8c2d` — PASS; final `git status --porcelain` — clean.
 
 ## Follow-ups