Fix guest demo UX and enforce guest limits

resources/js/guest/services/__tests__/eventApi.test.ts

@@ -0,0 +1,23 @@
+import { describe, expect, it, vi } from 'vitest';
+import { fetchEvent, FetchEventError } from '../eventApi';
+
+describe('fetchEvent', () => {
+  it('maps guest_limit_exceeded error codes', async () => {
+    const originalFetch = global.fetch;
+    global.fetch = vi.fn().mockResolvedValue({
+      ok: false,
+      status: 402,
+      json: async () => ({
+        error: { code: 'guest_limit_exceeded', message: 'Limit reached' },
+      }),
+    } as Response);
+
+    await expect(fetchEvent('token')).rejects.toEqual(
+      expect.objectContaining<Pick<FetchEventError, 'code'>>({
+        code: 'guest_limit_exceeded',
+      })
+    );
+
+    global.fetch = originalFetch;
+  });
+});