# Progress — explorer_m4_3

Last visited: 2026-10-08T07:43:30Z
Current Status: All tasks and deliverables completed. Completion message delivered to parent.

## Checklist
- [x] Initialized DISPATCH.md, BRIEFING.md, progress.md
- [x] Read ORIGINAL_REQUEST.md and PROJECT.md
- [x] Inspect web_review folder structure and frontend files (`web_review/templates/index.html`, `server.py`)
- [x] Verify EP01 188-shot matrix (15 scenes C01-C15) in UI
- [x] Verify Sweet-Spot 720p start frame prompt display
- [x] Verify Muse.ai motion prompt and mandatory Audio Guard display
- [x] Verify Lip-Sync Closed Lips guards display
- [x] Verify versioned video playback (_10s_v1.mp4, _v2.mp4, _master_v1.mp4)
- [x] Check PROJECT.md milestone table lines 49-50 (M3: DONE, M4: IN_PROGRESS)
- [x] Formulate UI improvements and frontend code edits for Worker M4 (`proposed_frontend_enhancements.js`)
- [x] Write analysis.md
- [x] Write handoff.md following 5-component protocol
- [x] Update BRIEFING.md
- [x] Send completion message to parent orchestrator