test(accounts): cover the deferred-transactions reload on create

Deferring the ledger makes the post-create refresh load-bearing on
deferred-prop semantics: handleTransactionCreated now relies on
router.reload({ only: ['transactions'] }) re-resolving the deferred
closure instead of remounting the list. Assert that contract so a
regression in the reload target is caught.

resources/js/pages/Accounts/Show.test.tsx

@@ -1,4 +1,5 @@
-import { fireEvent, render, screen } from '@testing-library/react';
+import { router } from '@inertiajs/react';
+import { act, fireEvent, render, screen } from '@testing-library/react';
 import { type ReactNode } from 'react';
 import { describe, expect, it, vi } from 'vitest';
 
@@ -116,6 +117,17 @@ describe('AccountShow', () => {
         );
     });
 
+    it('reloads only the deferred transactions prop after a transaction is created', () => {
+        renderPage();
+
+        const { onSuccess } = editTransactionDialog.mock.calls.at(-1)![0] as {
+            onSuccess: () => void;
+        };
+        act(() => onSuccess());
+
+        expect(router.reload).toHaveBeenCalledWith({ only: ['transactions'] });
+    });
+
     it('hides transaction action for connected accounts', () => {
         renderPage({
             ...baseAccount,