refactor(repo): replace legacy openflare-server with Wavelet rename

Delete the old monolithic openflare-server implementation and rename
Wavelet/ to openflare-server/ to complete the migration consolidation.
Update CI workflows, agent Dockerfiles, and deployment docs for the new
layout (frontend/, docker/Dockerfile).

openflare-server/frontend/components/providers/title-updater.tsx

@@ -0,0 +1,34 @@
+"use client"
+
+import {useQuery} from '@tanstack/react-query'
+import {useEffect} from 'react'
+import {ConfigService} from '@/lib/services/config'
+import {usePathname} from 'next/navigation'
+
+export function SiteTitleUpdater() {
+  const pathname = usePathname()
+  const publicConfigQuery = useQuery({
+    queryKey: ["public-config"],
+    queryFn: () => ConfigService.getPublicConfig(),
+  })
+
+  useEffect(() => {
+    const siteName = publicConfigQuery.data?.site_name || "OpenFlare"
+
+    // Determine the page suffix based on path
+    let suffix = ""
+    if (pathname === "/login") {
+      suffix = " - 登录"
+    } else if (pathname === "/register") {
+      suffix = " - 注册"
+    } else if (pathname.startsWith("/admin")) {
+      suffix = " - 后台管理"
+    } else if (pathname === "/") {
+      suffix = " - 总览"
+    }
+
+    document.title = `${siteName}${suffix}`
+  }, [publicConfigQuery.data?.site_name, pathname])
+
+  return null
+}