Application layer:
- PagedRequest/PagedResult<T> with sane defaults (pageSize 50, max 500)
- CatalogDtos: read DTOs with joined names + input DTOs for upsert
- Product input supports nested Prices[] and Barcodes[] for atomic save
API controllers (api/catalog/…):
- countries, currencies (global, write requires SuperAdmin)
- vat-rates, units-of-measure, price-types, stores (write: Admin/Manager)
- retail-points (references Store, Admin/Manager write)
- product-groups: hierarchy with auto-computed Path, delete guarded against children/products
- counterparties: filter by kind (Supplier/Customer/Both), full join with Country
- products: includes joined lookups, filter by group/isService/isWeighed/isActive,
search by name/article/barcode, write replaces Prices+Barcodes atomically
Role semantics:
- SuperAdmin: mutates global references only
- Admin: mutates/deletes tenant references
- Manager: mutates tenant references (no delete on some)
- Storekeeper: can manage counterparties and products (but not delete)
All endpoints guarded by [Authorize]. Multi-tenant isolation via EF query filter.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
