Add PurchaseItem entity with status tracking (Pending/Ordered/Received), supplier and job relationships. Add LockedAt timestamp to Job entity for controlling editability after materials are ordered. Includes PurchaseItemService (CRUD + bulk create), JobService Lock/Unlock methods, EF Core migrations, and DI registration. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
1.2 KiB
1.2 KiB