upgrade to tamagui v2 and guest pwa overhaul

resources/js/guest-v2/__tests__/statsApi.test.ts

@@ -0,0 +1,33 @@
+import { describe, expect, it, vi, beforeEach, afterEach } from 'vitest';
+import { fetchEventStats, clearStatsCache } from '../services/statsApi';
+
+const fetchMock = vi.fn();
+
+global.fetch = fetchMock as unknown as typeof fetch;
+
+describe('fetchEventStats', () => {
+  beforeEach(() => {
+    fetchMock.mockReset();
+    clearStatsCache();
+  });
+
+  afterEach(() => {
+    clearStatsCache();
+  });
+
+  it('returns cached stats on 304', async () => {
+    fetchMock.mockResolvedValueOnce(
+      new Response(JSON.stringify({ online_guests: 4, tasks_solved: 1, latest_photo_at: '2024-01-01T00:00:00Z' }), {
+        status: 200,
+        headers: { ETag: '"demo"' },
+      })
+    );
+
+    const first = await fetchEventStats('demo');
+    expect(first.onlineGuests).toBe(4);
+
+    fetchMock.mockResolvedValueOnce(new Response(null, { status: 304, headers: { ETag: '"demo"' } }));
+    const second = await fetchEventStats('demo');
+    expect(second).toEqual(first);
+  });
+});