- Add WarehouseItem model with bilingual names (FA/EN) and bilingual counting units
- Add WarehouseItemTransaction model for IN/OUT movements with reason and actor
- Add WarehouseItemStock model for denormalized per-(item×warehouse) running balance
- Add warehouseItemService with full CRUD, atomic stock updates via $inc, negative stock guard, and aggregation queries for per-item/per-warehouse/total stock
- Add warehouseItemController and REST routes at /api/warehouse-items
- Add warehouseService, warehouseController, warehouseRoutes for warehouse location CRUD at /api/warehouses
- Register both route groups in routerEndpoints.js
ADD: DocumentUrls and mainImageUrls field in belonging model
FIX: Indexing bugs for belonging
ADD: getImage endpoint to get private images
ADD: PrivateUrl field as virtual
FIX: Minor bug in bucketDeleteFile service
ADD: Word type to multer file checker
ADD: Get-Self endpoint for users
ADD: Category and Role Seeder
FIX: Login Check Bug
ADD: Extra fields for documents and images in belonging model
ADD: localhost:5173 to cors
ADD: SuperAdmin ID to env