add dispute functionality for contract duty and implement collection dates

packages/types/src/freight/contracts.ts

@@ -848,7 +848,14 @@ export interface CreateContractDto {
   freightType: ContractFreightType;
 
   serviceTypeId: string;
-  paymentCurrency: string;
+  /**
+   * Ignored on create — a contract always quotes in USD now. The billing
+   * currency is chosen per shipment (at booking, or on the shipment request
+   * when GL books on the customer's behalf).
+   *
+   * @deprecated
+   */
+  paymentCurrency?: string;
   customsClearingEnabled?: boolean;
   customsClearingAgent?: string;
   equipmentReturn?: string;