Task-by-task TDD plan: Worker.pay_type + migration, Salary additive type, attendance/absence picker exclusions, add_adjustment Salary branch, per-project salaried-cost report line + byte-for-byte daily-numbers regression guard, UI, docs. Ends with a HARD STOP before any push for Konrad's local verification. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>