feat(app): add error/loading boundaries and update dashboard routes

- Add error.tsx and loading.tsx boundaries for admin, parent, student, teacher routes

- Add dashboard-error-fallback and dashboard-loading-skeleton components

- Add student/learning page, parent/leave routes, teacher textbook components

- Update existing app routes across auth, dashboard, and API endpoints

- Update proxy middleware and next-auth type declarations

src/app/(dashboard)/settings/page.tsx

@@ -1,16 +1,18 @@
 import { redirect } from "next/navigation"
 import { getTranslations } from "next-intl/server"
+import { headers } from "next/headers"
 
 import { requireAuth } from "@/shared/lib/auth-guard"
 import { SettingsView } from "@/modules/settings/components/settings-view"
 import { SettingsServiceProvider } from "@/modules/settings/components/settings-service-context"
 import { resolveRoleSettingsConfig } from "@/modules/settings/config/role-settings-config"
 import type { SettingsService } from "@/modules/settings/types"
+import {
+  updateProfileAction,
+  updateNotificationPreferencesAction,
+} from "@/modules/settings/actions-service"
 import { getUserProfile } from "@/modules/users/data-access"
-import { updateUserProfile } from "@/modules/users/actions"
 import { getNotificationPreferences } from "@/modules/notifications/preferences"
-import { updateNotificationPreferencesAction } from "@/modules/messaging/actions"
-import type { UpdateNotificationPreferencesInput } from "@/modules/notifications/types"
 
 export const dynamic = "force-dynamic"
 
@@ -18,32 +20,6 @@ export const metadata = {
   title: "Settings",
 }
 
-/**
- * 将通知偏好输入对象转换为 FormData，适配 updateNotificationPreferencesAction 的签名。
- * Action 内部通过 formData.get(key) === "on" 解析布尔值。
- */
-function buildNotificationFormData(input: UpdateNotificationPreferencesInput): FormData {
-  const formData = new FormData()
-  const booleanFields: Array<keyof UpdateNotificationPreferencesInput> = [
-    "emailEnabled",
-    "smsEnabled",
-    "pushEnabled",
-    "homeworkNotifications",
-    "gradeNotifications",
-    "announcementNotifications",
-    "messageNotifications",
-    "attendanceNotifications",
-    "quietHoursEnabled",
-  ]
-  for (const field of booleanFields) {
-    const value = input[field]
-    if (value === true) formData.set(field, "on")
-  }
-  if (input.quietHoursStart) formData.set("quietHoursStart", input.quietHoursStart)
-  if (input.quietHoursEnd) formData.set("quietHoursEnd", input.quietHoursEnd)
-  return formData
-}
-
 export default async function SettingsPage() {
   const ctx = await requireAuth()
 
@@ -56,22 +32,23 @@ export default async function SettingsPage() {
   const notificationPrefs = await getNotificationPreferences(userId)
   const t = await getTranslations("settings")
 
+  // 获取当前请求的 User-Agent，用于安全中心标记当前会话
+  const headerList = await headers()
+  const currentUserAgent = headerList.get("user-agent") ?? ""
+
   const config = resolveRoleSettingsConfig(roles)
   const description = t(config?.descriptionKey ?? "title")
   const backHref = config?.backHref ?? "/dashboard"
   const generalExtra = config?.generalExtra
 
-  // 构建 SettingsService 实现，注入到 SettingsServiceProvider
-  // 组件层通过 useSettingsService() 消费，不直接 import users/messaging actions
+  // 构建 SettingsService：仅传递 Server Action 引用
+  // （Next.js 要求传递给 Client Component 的函数必须是 "use server" 标记的 Server Action）
   const service: SettingsService = {
     profile: {
-      getProfile: async () => getUserProfile(userId),
-      updateProfile: async (input) => updateUserProfile(input),
+      updateProfile: updateProfileAction,
     },
     notifications: {
-      getPreferences: async () => getNotificationPreferences(userId),
-      updatePreferences: async (input) =>
-        updateNotificationPreferencesAction(null, buildNotificationFormData(input)),
+      updatePreferences: updateNotificationPreferencesAction,
     },
   }
 
@@ -83,6 +60,7 @@ export default async function SettingsPage() {
         user={userProfile}
         notificationPreferences={notificationPrefs}
         generalExtra={generalExtra}
+        currentUserAgent={currentUserAgent}
       />
     </SettingsServiceProvider>
   )