feat: enhance booking management with shipping line support and cargo handling improvements

apps/edr-freight-api/src/modules/bookings/dto/filter-booking.dto.ts

@@ -111,6 +111,14 @@ export class FilterBookingDto {
   @IsIn(['true', 'false'])
   isGovernment?: 'true' | 'false';
 
+  @ApiPropertyOptional({
+    enum: ['SHIPPING_LINE', 'CUSTOMER'],
+    description: 'Who booked: a shipping line (owned by shipping_line_company_id) or an ordinary customer company',
+  })
+  @IsOptional()
+  @IsIn(['SHIPPING_LINE', 'CUSTOMER'])
+  customerKind?: 'SHIPPING_LINE' | 'CUSTOMER';
+
   @ApiPropertyOptional({
     enum: ['true', 'false'],
     description: 'Filter customs vs self-clearance (non-customs) bookings',