chore: implenet the external invoice 2

src/modules/businesses/interfaces/IQuotaPurchase.ts

@@ -0,0 +1,25 @@
+export class InvoiceItemDto {
+  name: string;
+  count: number;
+  unitPrice: number;
+  discount: number;
+}
+
+export interface IDanakCorpQuotaPurchaseRequest {
+  businessId: string;
+  danakSubscriptionId: string;
+  quotaAmount: number;
+  items: InvoiceItemDto[];
+  description?: string;
+}
+
+export interface IDanakCorpQuotaPurchaseResponse {
+  success: boolean;
+  data?: {
+    invoice: {
+      id: string;
+      [key: string]: unknown;
+    };
+  };
+  error?: string;
+}