feat: ( payment ) implement cbe payment

apps/edr-freight-api/src/modules/payment/payment.service.ts

@@ -51,6 +51,10 @@ export interface InitiateIntentInput {
   payerAccount?: string;
   returnUrl?: string;
   failureUrl?: string;
+  /** CBE_BILL: payer full name snapshot (feeds CBE's mandatory Full_Name). */
+  payerName?: string;
+  /** CBE_BILL: intent expiry, ISO-8601 — the invoice due date, never a session TTL. */
+  expiresAt?: string;
 }
 
 export interface InitiateIntentResult {
@@ -79,6 +83,7 @@ const PROVIDER_TO_METHOD: Record<string, PaymentEntity["method"]> = {
   CARD: "card",
   DMONEY: "dmoney",
   CAC_BANK: "cac-bank",
+  CBE_BILL: "cbe-bill",
 };
 
 /**
@@ -190,8 +195,13 @@ export class PaymentService {
    */
   async initiate(input: InitiateIntentInput): Promise<InitiateIntentResult> {
     try {
-
-       
+      const isCbeBill = input.method === ProviderMethod.CBE_BILL;
+      // CBE settles ETB only (docs/cbe/CBE_IMPLEMENTATION_PLAN.md D8).
+      if (isCbeBill && input.currency?.toUpperCase() !== "ETB") {
+        throw new BadRequestException(
+          "CBE bill payment is only available for ETB invoices",
+        );
+      }
 
       const snapshot = await this.paymentClient.initiate({
         service: PaymentServiceEnum.FREIGHT,
@@ -199,11 +209,15 @@ export class PaymentService {
         referenceId: input.referenceId,
         orderRef: input.orderRef,
         // amountMinor: input.amountMinor,
-        amountMinor:1,
+        // CBE_BILL must carry the REAL amount: /cbe/payment verifies what the customer was
+        // debited against the intent amount, so the 1-birr dev shortcut would break it.
+        amountMinor: isCbeBill ? input.amountMinor : 1,
         currency: input.currency,
         provider: input.method as ProviderMethod,
         platform: input.platform,
         payerAccount: input.payerAccount,
+        payerName: input.payerName,
+        expiresAt: input.expiresAt,
         returnUrl:
           input.returnUrl ?? "https://edrfreight.triaplc.com/payment/success",
         failureUrl: