54 ADRs in 35 days: why I write the decision before the first line of code

The file that opens before the first commit April 30, 2026, late afternoon. Rembrandt's /admin page has just betrayed me for the third time in two days. Blandine, an administrator, can't see the Attendance tab even though the "Attendance" checkbox is ticked in the rights grid she manages herself. Thirty minutes of digging earlier, I'd understood: the checkbox writes to dashboard_cards (display preference) and never touches can_access_emargement (the actual permission flag). Two semantic layers s