feat: added paymentMethod to controller

src/main/java/edu/group5/app/control/DonationController.java

@@ -43,6 +43,7 @@ public void handleDonate() {
     User currentUser = appState.getCurrentUser();
     Organization currentOrg = appState.getCurrentOrganization();
     BigDecimal amount = appState.getCurrentDonationAmount();
+    String paymentMethod = appState.getCurrentPaymentMethod();
 
     if (currentUser == null) {
       System.err.println("Error: No user logged in");
@@ -60,17 +61,21 @@ public void handleDonate() {
       System.err.println("Error: Invalid donation amount");
       return;
     }
+    if (paymentMethod == null) {
+      System.out.println("Error: Invalid payment method");
+      return;
+    }
 
     // Create donation via service
     boolean success = service.donate(
         customer,
         currentOrg.orgNumber(),
         amount,
-        "Online"
+        paymentMethod
     );
 
     if (success) {
-      System.out.println("Donation created: " + amount + " kr to " + currentOrg.name());
+      System.out.println("Donation created: " + amount + " kr to " + currentOrg.name() + ", with payment method: " + paymentMethod);
     } else {
       System.err.println("Failed to create donation");
     }