Comprehensive spec for upcoming MENTORING round (R6): config form completeness, mentor-specific admin views, manual + auto-fill assignment UX, multi-role juror→mentor flow, juror preferences filter, workspace messaging/file UX with server-side path enforcement, and test coverage. Phased into six independently-shippable PRs. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>