feat(settings): 设置与个人信息模块审计重构 — i18n + 服务注入解耦 + Error Boundary + 流式渲染

- 新增 SettingsService 接口 + Context 注入，组件层不再直接 import users/messaging actions

- 新增 resolveRoleSettingsConfig 配置驱动角色路由，删除 parent/student/teacher-settings-view 冗余文件

- 新增 SettingsSectionErrorBoundary，每个 TabsContent + profile 角色概览区块均包裹

- 新增 ProfileStudentOverview/ProfileTeacherOverview 异步 Server Component + 骨架屏，支持流式渲染

- 抽取 buildStudentOverviewData 等纯函数到 lib/student-overview-data.ts，便于单元测试

- 新增 settings.json 翻译文件（zh-CN + en），所有组件改用 useTranslations/getTranslations

- 重构 profile/page.tsx：i18n 适配 + Suspense 分区加载 + 业务逻辑抽离

- 同步更新架构图 004/005

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

@@ -1,4 +1,5 @@
 import { Lock } from "lucide-react"
+import { getTranslations } from "next-intl/server"
 
 import { requireAuth } from "@/shared/lib/auth-guard"
 import { PasswordChangeForm } from "@/modules/settings/components/password-change-form"
@@ -13,12 +14,13 @@ export const metadata = {
 
 export default async function SecuritySettingsPage() {
   await requireAuth()
+  const t = await getTranslations("settings")
 
   return (
     <div className="flex h-full flex-col gap-8 p-8">
       <PageHeader
-        title="Security"
-        description="Manage your password and account security settings."
+        title={t("tabs.security")}
+        description={t("security.changePassword.description")}
         icon={Lock}
       />
 
@@ -27,15 +29,15 @@ export default async function SecuritySettingsPage() {
 
         <Card>
           <CardHeader>
-            <CardTitle>Security Tips</CardTitle>
-            <CardDescription>Best practices to keep your account safe.</CardDescription>
+            <CardTitle>{t("security.tips.title")}</CardTitle>
+            <CardDescription>{t("security.tips.description")}</CardDescription>
           </CardHeader>
           <CardContent>
             <ul className="space-y-2 text-sm text-muted-foreground">
-              <li>Use a unique password that you don&apos;t reuse across other sites.</li>
-              <li>Avoid common words, names, or sequential patterns.</li>
-              <li>Change your password periodically.</li>
-              <li>Your account will be temporarily locked after multiple failed login attempts.</li>
+              <li>{t("security.tips.tip1")}</li>
+              <li>{t("security.tips.tip2")}</li>
+              <li>{t("security.tips.tip3")}</li>
+              <li>{t("security.tips.tip4")}</li>
             </ul>
           </CardContent>
         </Card>