feat: 完成 P1 全部功能 + 修复 proxy 导出 + 切换 MySQL 端口至 14013

## P1 功能（20 项）
- 站内消息系统、家长仪表盘、学生考勤管理
- Excel 导入导出、用户批量导入、成绩导出
- 排课规则+自动排课+课表调整
- 成绩趋势+对比分析、密码安全策略、速率限制
- 数据变更日志、文件预览+存储策略、全文检索
- 依赖审计集成 CI、数据库定时备份、E2E 测试完善
- 通知偏好管理

## 基础设施修复
- src/proxy.ts: 将 middleware 导出重命名为 proxy（Next.js 16 要求）
- .env: MySQL 端口从 13002 切换至 14013
- scripts/create-db.ts: 新增数据库初始化脚本

## 架构文档同步
- 004_architecture_impact_map.md 和 005_architecture_data.json
  完整记录所有新增表、模块、路由、权限、依赖关系

src/modules/settings/components/admin-settings-view.tsx

@@ -1,7 +1,7 @@
 "use client"
 
 import Link from "next/link"
-import { Shield, User, Building2, Lock } from "lucide-react"
+import { Shield, User, Building2, Lock, Bell } from "lucide-react"
 import { signOut } from "next-auth/react"
 
 import { Button } from "@/shared/components/ui/button"
@@ -12,9 +12,17 @@ import { Separator } from "@/shared/components/ui/separator"
 import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/shared/components/ui/tabs"
 import { ThemePreferencesCard } from "./theme-preferences-card"
 import { ProfileSettingsForm } from "@/modules/settings/components/profile-settings-form"
+import { PasswordChangeForm } from "@/modules/settings/components/password-change-form"
+import { NotificationPreferencesForm } from "@/modules/settings/components/notification-preferences-form"
 import { UserProfile } from "@/modules/users/data-access"
+import type { NotificationPreferences } from "@/modules/messaging/types"
 
-export function AdminSettingsView({ user }: { user: UserProfile }) {
+interface AdminSettingsViewProps {
+  user: UserProfile
+  notificationPreferences: NotificationPreferences
+}
+
+export function AdminSettingsView({ user, notificationPreferences }: AdminSettingsViewProps) {
   return (
     <div className="flex h-full flex-col gap-8 p-8">
       <div className="flex flex-col justify-between gap-4 md:flex-row md:items-center">
@@ -35,6 +43,10 @@ export function AdminSettingsView({ user }: { user: UserProfile }) {
             <User className="h-4 w-4" />
             General
           </TabsTrigger>
+          <TabsTrigger value="notifications" className="gap-2">
+            <Bell className="h-4 w-4" />
+            Notifications
+          </TabsTrigger>
           <TabsTrigger value="appearance" className="gap-2">
             <Shield className="h-4 w-4" />
             Appearance
@@ -85,11 +97,16 @@ export function AdminSettingsView({ user }: { user: UserProfile }) {
           </Card>
         </TabsContent>
 
+        <TabsContent value="notifications" className="mt-6 space-y-6">
+          <NotificationPreferencesForm preferences={notificationPreferences} />
+        </TabsContent>
+
         <TabsContent value="appearance" className="mt-6 space-y-6">
           <ThemePreferencesCard />
         </TabsContent>
 
         <TabsContent value="security" className="mt-6 space-y-6">
+          <PasswordChangeForm />
           <Card>
             <CardHeader>
               <CardTitle>Session</CardTitle>