fix(warehouses): detention groups by canonical truck type

Join truck_types via vehicles.truck_type_id (normalized legacy
vehicle_type only as fallback) so type renames can't unmatch detention
rules and FK-less vehicles keep billing.

apps/edr-freight-api/src/modules/first-mile/dto/set-vehicles.dto.ts

@@ -1,4 +1,4 @@
-import { IsArray, IsOptional, IsString, IsUUID, ValidateNested } from 'class-validator';
+import { IsArray, IsNumber, IsOptional, IsString, IsUUID, Min, ValidateNested } from 'class-validator';
 import { Type } from 'class-transformer';
 
 export class FirstMileVehicleInput {
@@ -8,6 +8,18 @@ export class FirstMileVehicleInput {
   @IsOptional()
   @IsString()
   containerNumber?: string;
+
+  /** Bulk: tonnage this truck hauls. */
+  @IsOptional()
+  @IsNumber()
+  @Min(0)
+  tons?: number;
+
+  /** Bulk: optional item/piece count. */
+  @IsOptional()
+  @IsNumber()
+  @Min(0)
+  quantity?: number;
 }
 
 /** Replace the full set of vehicles (with their container numbers) on a pickup. */