4 small TDD tasks (~120 LOC): display rename, attendance 3-button branch, Site Journal save+absences button, docs. Reuses Round C next_action pattern. HARD STOP after Task 4 — local verification by Konrad before any push (UX change to a daily-use path). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>