7 tasks + 1 mid-flight checkpoint after Task 5 (CRUD complete). Each task is TDD: failing test → minimal impl → verify pass → commit. Target ~38 new tests, ~1700 LOC. Skipped doctor's note upload (Q7 decision). Risks flagged: OneToOneField SET_NULL drift, atomic-failure path. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>