style: clean up code formatting and remove trailing whitespace

refactor: reorganize imports and fix type imports

lib/payment-cache.ts

@@ -18,7 +18,7 @@ export function markAsPaid(
     amount: number;
     anonymous: boolean;
     customer?: any;
-  }
+  },
 ) {
   paymentCache.set(pixId, {
     paid: true,