Rewrite DASHBOARD_REVIEW.md with progress-tracking improvements:
- Add GitHub-style checkboxes to all 41 actionable items
- Add file inventory table with line counts and purposes
- Add commit log section for tracking implementation progress
- Add sprint tracker tables with effort estimates and commit columns
- New finding B11: prompt text not cleared on Escape close
- New finding CQ6: no Zod validation on API responses
- Consolidate priority matrix into sprint tables (less redundancy)
- Add deferred items section with dependency notes
- Improve item descriptions with more precise file:line references
- Add stack summary and total effort estimate (14–17 hrs)
