fix: update QR code print layout to show payedAmount instead of yearMonth

Remove billYear and billMonth from second column, add payedAmount as last value.
- Update PrintBarcodeData interface to replace yearMonth with payedAmount
- Modify fetchBarcodeDataForPrint to include bill.payedAmount
- Update PrintPreview display to show payedAmount (formatted from cents)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

app/ui/PrintPreview.tsx

@@ -117,15 +117,17 @@ export const PrintPreview: React.FC<PrintPreviewProps> = ({ data, year, month, t
                 </td>
                 <td className="border-2 border-gray-800 px-3 py-4">
                   <div className="space-y-1">
-                    <div className="font-bold text-sm text-gray-900">
-                      📅 {item.yearMonth}
-                    </div>
                     <div className="font-medium text-sm text-gray-800">
                       🏠 {item.locationName}
                     </div>
                     <div className="text-sm text-gray-700">
                       📋 {item.billName}
                     </div>
+                    {item.payedAmount && (
+                      <div className="text-sm text-gray-700">
+                        💰 {(item.payedAmount / 100).toFixed(2)}
+                      </div>
+                    )}
                   </div>
                 </td>
                 <td className="border-2 border-gray-800 px-3 py-1.5 text-center">