add customs clearing filter and enhance clearance documents page for non-customs contracts

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

@@ -106,6 +106,14 @@ export class FilterBookingDto {
   @IsIn(['true', 'false'])
   isGovernment?: 'true' | 'false';
 
+  @ApiPropertyOptional({
+    enum: ['true', 'false'],
+    description: 'Filter customs vs self-clearance (non-customs) bookings',
+  })
+  @IsOptional()
+  @IsIn(['true', 'false'])
+  customsClearingEnabled?: 'true' | 'false';
+
   @ApiPropertyOptional({ enum: TRADE_DIRECTIONS })
   @IsOptional()
   @IsIn([...TRADE_DIRECTIONS])