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/modules/settings/config/role-settings-config.tsx

@@ -0,0 +1,84 @@
+import type { ReactNode } from "react"
+import {
+  LayoutDashboard,
+  GraduationCap,
+  CalendarDays,
+  ClipboardList,
+  PenTool,
+  Library,
+  FileQuestion,
+} from "lucide-react"
+
+import { QuickLinksCard, type QuickLinkItem } from "@/modules/settings/components/quick-links-card"
+import type { Role } from "@/shared/types/permissions"
+
+/**
+ * 角色设置页配置
+ *
+ * 通过配置驱动角色 → 设置视图的映射，新增角色只需在此添加条目。
+ * description/backHref 使用 i18n 键，由消费方翻译。
+ * 快捷链接的 label 通过 settings.quickLinks 命名空间国际化。
+ */
+
+export interface RoleSettingsConfig {
+  /** i18n 键：settings.<role>.description */
+  descriptionKey: string
+  backHref: string
+  /** 角色专属快捷链接区块（General 标签页底部） */
+  generalExtra?: ReactNode
+}
+
+const STUDENT_LINKS: QuickLinkItem[] = [
+  { href: "/student/dashboard", labelKey: "dashboard", icon: <LayoutDashboard className="h-4 w-4" /> },
+  { href: "/student/learning/assignments", labelKey: "assignments", icon: <PenTool className="h-4 w-4" /> },
+  { href: "/student/schedule", labelKey: "schedule", icon: <CalendarDays className="h-4 w-4" /> },
+]
+
+const PARENT_LINKS: QuickLinkItem[] = [
+  { href: "/parent/dashboard", labelKey: "dashboard", icon: <LayoutDashboard className="h-4 w-4" /> },
+  { href: "/parent/children", labelKey: "children", icon: <GraduationCap className="h-4 w-4" /> },
+  { href: "/parent/grades", labelKey: "grades", icon: <ClipboardList className="h-4 w-4" /> },
+  { href: "/parent/attendance", labelKey: "attendance", icon: <CalendarDays className="h-4 w-4" /> },
+]
+
+const TEACHER_LINKS: QuickLinkItem[] = [
+  { href: "/teacher/dashboard", labelKey: "dashboard", icon: <LayoutDashboard className="h-4 w-4" /> },
+  { href: "/teacher/textbooks", labelKey: "textbooks", icon: <Library className="h-4 w-4" /> },
+  { href: "/teacher/exams/all", labelKey: "exams", icon: <FileQuestion className="h-4 w-4" /> },
+  { href: "/teacher/homework/assignments", labelKey: "homework", icon: <PenTool className="h-4 w-4" /> },
+  { href: "/teacher/classes/schedule", labelKey: "schedule", icon: <CalendarDays className="h-4 w-4" /> },
+]
+
+export const ROLE_SETTINGS_CONFIG: Partial<Record<Role, RoleSettingsConfig>> = {
+  admin: {
+    descriptionKey: "settings.roleDescriptions.admin",
+    backHref: "/admin/dashboard",
+  },
+  teacher: {
+    descriptionKey: "settings.roleDescriptions.teacher",
+    backHref: "/teacher/dashboard",
+    generalExtra: <QuickLinksCard links={TEACHER_LINKS} />,
+  },
+  student: {
+    descriptionKey: "settings.roleDescriptions.student",
+    backHref: "/student/dashboard",
+    generalExtra: <QuickLinksCard links={STUDENT_LINKS} />,
+  },
+  parent: {
+    descriptionKey: "settings.roleDescriptions.parent",
+    backHref: "/parent/dashboard",
+    generalExtra: <QuickLinksCard links={PARENT_LINKS} />,
+  },
+}
+
+/**
+ * 根据角色列表解析首选设置配置。
+ * 优先级：admin > teacher > student > parent
+ */
+export function resolveRoleSettingsConfig(roles: Role[]): RoleSettingsConfig | null {
+  for (const role of roles) {
+    const config = ROLE_SETTINGS_CONFIG[role]
+    if (config) return config
+  }
+  return null
+}