upgrade to tamagui v2 and guest pwa overhaul

resources/js/guest-v2/services/statsApi.ts

@@ -0,0 +1,40 @@
+import { getDeviceId } from '../lib/device';
+import { fetchJson } from './apiClient';
+import type { EventStats } from './eventApi';
+
+const statsCache = new Map<string, { etag: string | null; data: EventStats }>();
+
+export async function fetchEventStats(eventToken: string): Promise<EventStats> {
+  const cached = statsCache.get(eventToken);
+  const response = await fetchJson<{ online_guests?: number; tasks_solved?: number; latest_photo_at?: string | null }>(
+    `/api/v1/events/${encodeURIComponent(eventToken)}/stats`,
+    {
+      headers: {
+        'X-Device-Id': getDeviceId(),
+      },
+      etag: cached?.etag ?? null,
+      noStore: true,
+    }
+  );
+
+  if (response.notModified && cached) {
+    return cached.data;
+  }
+
+  const stats: EventStats = {
+    onlineGuests: response.data?.online_guests ?? 0,
+    tasksSolved: response.data?.tasks_solved ?? 0,
+    latestPhotoAt: response.data?.latest_photo_at ?? null,
+  };
+
+  statsCache.set(eventToken, { etag: response.etag, data: stats });
+  return stats;
+}
+
+export function clearStatsCache(eventToken?: string) {
+  if (eventToken) {
+    statsCache.delete(eventToken);
+    return;
+  }
+  statsCache.clear();
+}