frontend phase 3: geography — addresses, map-pin picker & nurse coverage areas

Three domain services (mirroring the patients/nurse template): services/geography
(cached province→city→district lookups; Infinity staleTime + shared geographyKeys),
services/addresses (address book CRUD + set-primary; single-primary invariant), and
services/serviceAreas (coverage add/remove; areaExists dup-guard, districtId=null = whole city).

Four tested composites in src/components/geography: CascadingRegionSelect (drives the
cascade queries), AddressMapPicker (map-pin stand-in emitting real lat/lng), AddressForm,
AddressCard. Screens: customer address book (/addresses, reached from the profile hub) and
nurse coverage editor (/nurse/coverage, new sidebar tab, inline duplicate block + 409).

Adds geo/address/coverage i18n namespaces (both locales), location/delete/coverage icons,
ADDRESSES/NURSE_COVERAGE routes. Consumes the b4 geography-addresses contract; filed REQ-008
(accept the map pin on create/update) and REQ-009 (provinceId on CustomerAddressDto) for gaps.

Gate: npm run check + npm run test:ci (129, +17) + npm run build all green. A 5-dimension
adversarial review fixed 3 findings (map-marker RTL transform, page_size→pageSize pagination
casing, coverage districts-scope dead-end on district-less cities).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

client/src/components/common/AppIcon/config.ts

@@ -37,6 +37,9 @@ import ArchiveIcon from '@mui/icons-material/Inventory2Outlined';
 import BankIcon from '@mui/icons-material/AccountBalanceOutlined';
 import CameraIcon from '@mui/icons-material/PhotoCameraOutlined';
 import WarningIcon from '@mui/icons-material/WarningAmberOutlined';
+import LocationIcon from '@mui/icons-material/LocationOnOutlined';
+import DeleteIcon from '@mui/icons-material/DeleteOutlined';
+import CoverageIcon from '@mui/icons-material/MapOutlined';
 
 /**
  * List of all available Icon names
@@ -89,4 +92,7 @@ export const ICONS /* Note: Setting type disables property autocomplete :( was -
   bank: BankIcon,
   camera: CameraIcon,
   warning: WarningIcon,
+  location: LocationIcon,
+  delete: DeleteIcon,
+  coverage: CoverageIcon,
 };