update joins in repository services to use entity classes and enhance booking form with hazardous/reefer toggles

packages/types/src/freight/contracts.ts

@@ -132,6 +132,13 @@ export interface IContractCargoScope {
   /** "20ft" | "40ft"; null for bulk. */
   containerSize?: string | null;
   cargoTypeId?: string | null;
+  /** Bulk cargo type detail (name + unit), loaded on the contract detail. */
+  cargoType?: {
+    id: string;
+    code?: string | null;
+    cargoTypeName?: string | null;
+    unitOfMeasure?: string | null;
+  } | null;
   cargoFreeText?: string | null;
   /**
    * GENERAL contracts: total quantity bookable across all shipments on this line