Implemented file storage handling for Corporate Transfer and Comission Transfer

src/interfaces/paypal.ts

@@ -32,4 +32,6 @@ export interface Payment {
 	value: number;
 	isPaid: boolean;
 	date: Date;
+	corporateTransfer?: string;
+	commissionTransfer?: string;
 }

src/interfaces/storage.files.ts

@@ -0,0 +1 @@
+export type FilesStorage = "commission" | "corporate";