改造实时事件缓存同步

apps/backend/src/routes/admin/realtime.ts

@@ -5,8 +5,15 @@ import { requireAdminRoles } from './session.js'
 
 const router = Router()
 
-router.get('/realtime', requireAdminRoles(['admin', 'operator', 'support']), (_req, res) => {
-  openAdminRealtimeStream(res)
+router.get('/realtime', requireAdminRoles(['admin', 'operator', 'support']), (req, res) => {
+  openAdminRealtimeStream(res, resolveLastEventId(req))
 })
 
+function resolveLastEventId(request: {
+  get(name: string): string | undefined
+  query: Record<string, unknown>
+}) {
+  return Number(request.get('Last-Event-ID') || request.query.lastEventId || 0) || 0
+}
+
 export default router