feat(warehouses): make dashboard date range + warehouse filter real

Backs the previously-dead header date-picker and Filters button with
an actual scoped query. getDashboard() takes optional dateFrom/dateTo/
warehouseId: received (renamed from receivedToday) is the only
activity counter and respects the date range, defaulting to today when
omitted; the 10 status-backlog counters respect warehouseId only;
totalWarehouses/emptyContainers/importTrains/exportTrains stay global
since nothing ties them to a specific warehouse in the schema. Adds a
warehouse Select + date-range picker to the dashboard header, with a
caption spelling out what is and isn't scoped.

apps/edr-freight-api/src/modules/warehouses/warehouses.controller.ts

@@ -43,9 +43,20 @@ export class WarehousesController {
 
   @Get('dashboard')
   @BookingStaff(FREIGHT_PERMS.warehouseDashboard.view)
-  @ApiOperation({ summary: 'Warehouse dashboard metrics' })
-  dashboard() {
-    return this.dashboardService.getDashboard();
+  @ApiOperation({
+    summary: 'Warehouse dashboard metrics',
+    description:
+      'dateFrom/dateTo scope only the activity counters (currently just "received"); ' +
+      'status-backlog and fleet counters are always current. Omit both for "received today" ' +
+      '(the original default). warehouseId scopes every warehouse_inventory-derived counter; ' +
+      'totalWarehouses/emptyContainers/importTrains/exportTrains are never warehouse-scoped.',
+  })
+  dashboard(
+    @Query('dateFrom') dateFrom?: string,
+    @Query('dateTo') dateTo?: string,
+    @Query('warehouseId') warehouseId?: string,
+  ) {
+    return this.dashboardService.getDashboard({ dateFrom, dateTo, warehouseId });
   }
 
   @Post()