feat(admin): 补全 admin 模块核心功能与产品体验优化

修复 v4 报告中的 13 个产品体验问题：新增用户管理列表页和系统设置页，重组导航菜单并补充缺失入口，增加角色切换机制，Dashboard 增加快捷操作和 recharts 趋势图表，考勤增加统计概览，排课增加课表网格视图，统一 Toast 操作反馈，同步更新架构文档

src/modules/layout/config/navigation.ts

@@ -18,7 +18,9 @@ import {
   CalendarCheck,
   CalendarClock,
   Stethoscope,
-  BookMarked
+  BookMarked,
+  BookCopy,
+  Files,
 } from "lucide-react"
 import type { LucideIcon } from "lucide-react"
 import { Permissions } from "@/shared/types/permissions"
@@ -54,10 +56,28 @@ export const NAV_CONFIG: Partial<Record<Role, NavItem[]>> = {
         { title: "Departments", href: "/admin/school/departments" },
         { title: "Classes", href: "/admin/school/classes" },
         { title: "Academic Year", href: "/admin/school/academic-year" },
-        { title: "Course Plans", href: "/admin/course-plans", permission: Permissions.COURSE_PLAN_MANAGE },
+      ]
+    },
+    {
+      title: "Users",
+      icon: Users,
+      href: "/admin/users",
+      permission: Permissions.USER_MANAGE,
+      items: [
+        { title: "User List", href: "/admin/users" },
         { title: "Import Users", href: "/admin/users/import", permission: Permissions.USER_MANAGE },
       ]
     },
+    {
+      title: "Teaching",
+      icon: BookCopy,
+      href: "/admin/course-plans",
+      permission: Permissions.COURSE_PLAN_MANAGE,
+      items: [
+        { title: "Course Plans", href: "/admin/course-plans", permission: Permissions.COURSE_PLAN_MANAGE },
+        { title: "Electives", href: "/admin/elective", permission: Permissions.ELECTIVE_MANAGE },
+      ]
+    },
     {
       title: "Scheduling",
       icon: CalendarClock,
@@ -69,6 +89,24 @@ export const NAV_CONFIG: Partial<Record<Role, NavItem[]>> = {
         { title: "Change Requests", href: "/admin/scheduling/changes", permission: Permissions.SCHEDULE_ADJUST },
       ]
     },
+    {
+      title: "Attendance",
+      icon: CalendarCheck,
+      href: "/admin/attendance",
+      permission: Permissions.ATTENDANCE_READ,
+    },
+    {
+      title: "Announcements",
+      icon: Megaphone,
+      href: "/admin/announcements",
+      permission: Permissions.ANNOUNCEMENT_MANAGE,
+    },
+    {
+      title: "文件管理",
+      icon: Files,
+      href: "/admin/files",
+      permission: Permissions.FILE_READ,
+    },
     {
       title: "Audit Logs",
       icon: ScrollText,
@@ -80,18 +118,6 @@ export const NAV_CONFIG: Partial<Record<Role, NavItem[]>> = {
         { title: "Data Changes", href: "/admin/audit-logs/data-changes" },
       ]
     },
-    {
-      title: "Announcements",
-      icon: Megaphone,
-      href: "/admin/announcements",
-      permission: Permissions.ANNOUNCEMENT_MANAGE,
-    },
-    {
-      title: "Electives",
-      icon: BookMarked,
-      href: "/admin/elective",
-      permission: Permissions.ELECTIVE_MANAGE,
-    },
     {
       title: "Messages",
       icon: Mail,
@@ -101,130 +127,130 @@ export const NAV_CONFIG: Partial<Record<Role, NavItem[]>> = {
     {
       title: "Settings",
       icon: Settings,
-      href: "/settings",
+      href: "/admin/settings",
       permission: Permissions.SETTINGS_ADMIN,
     },
   ],
   teacher: [
     {
-      title: "Dashboard",
+      title: "仪表盘",
       icon: LayoutDashboard,
       href: "/teacher/dashboard",
     },
     {
-      title: "Textbooks",
+      title: "教材",
       icon: Library,
       href: "/teacher/textbooks",
       permission: Permissions.TEXTBOOK_READ,
     },
     {
-      title: "Exams",
+      title: "考试",
       icon: FileQuestion,
       href: "/teacher/exams",
       permission: Permissions.EXAM_CREATE,
       items: [
-        { title: "All Exams", href: "/teacher/exams/all" },
-        { title: "Create Exam", href: "/teacher/exams/create", permission: Permissions.EXAM_CREATE },
+        { title: "全部考试", href: "/teacher/exams/all" },
+        { title: "创建考试", href: "/teacher/exams/create", permission: Permissions.EXAM_CREATE },
       ]
     },
     {
-      title: "Homework",
+      title: "作业",
       icon: PenTool,
       href: "/teacher/homework",
       permission: Permissions.HOMEWORK_CREATE,
       items: [
-        { title: "Assignments", href: "/teacher/homework/assignments" },
-        { title: "Submissions", href: "/teacher/homework/submissions" },
+        { title: "作业列表", href: "/teacher/homework/assignments" },
+        { title: "提交记录", href: "/teacher/homework/submissions" },
       ]
     },
     {
-      title: "Grades",
+      title: "成绩",
       icon: GraduationCap,
       href: "/teacher/grades",
       permission: Permissions.GRADE_RECORD_MANAGE,
       items: [
-        { title: "All Grades", href: "/teacher/grades" },
-        { title: "Batch Entry", href: "/teacher/grades/entry", permission: Permissions.GRADE_RECORD_MANAGE },
-        { title: "Statistics", href: "/teacher/grades/stats", permission: Permissions.GRADE_RECORD_READ },
-        { title: "Analytics", href: "/teacher/grades/analytics", permission: Permissions.GRADE_RECORD_READ },
+        { title: "全部成绩", href: "/teacher/grades" },
+        { title: "批量录入", href: "/teacher/grades/entry", permission: Permissions.GRADE_RECORD_MANAGE },
+        { title: "成绩统计", href: "/teacher/grades/stats", permission: Permissions.GRADE_RECORD_READ },
+        { title: "成绩分析", href: "/teacher/grades/analytics", permission: Permissions.GRADE_RECORD_READ },
       ]
     },
     {
-      title: "Question Bank",
+      title: "题库",
       icon: ClipboardList,
       href: "/teacher/questions",
       permission: Permissions.QUESTION_READ,
     },
     {
-      title: "Class Management",
+      title: "班级管理",
       icon: Users,
       href: "/teacher/classes",
       permission: Permissions.CLASS_READ,
       items: [
-        { title: "My Classes", href: "/teacher/classes/my" },
-        { title: "Students", href: "/teacher/classes/students" },
-        { title: "Schedule", href: "/teacher/classes/schedule", permission: Permissions.CLASS_SCHEDULE },
+        { title: "我的班级", href: "/teacher/classes/my" },
+        { title: "学生", href: "/teacher/classes/students" },
+        { title: "课表", href: "/teacher/classes/schedule", permission: Permissions.CLASS_SCHEDULE },
       ]
     },
     {
-      title: "Course Plans",
+      title: "课程计划",
       icon: CalendarRange,
       href: "/teacher/course-plans",
       permission: Permissions.COURSE_PLAN_READ,
     },
     {
-      title: "Lesson Plans",
+      title: "我的备课",
       icon: PenTool,
       href: "/teacher/lesson-plans",
       permission: Permissions.LESSON_PLAN_READ,
     },
     {
-      title: "Attendance",
+      title: "考勤",
       icon: CalendarCheck,
       href: "/teacher/attendance",
       permission: Permissions.ATTENDANCE_MANAGE,
       items: [
-        { title: "Records", href: "/teacher/attendance" },
-        { title: "Take Attendance", href: "/teacher/attendance/sheet", permission: Permissions.ATTENDANCE_MANAGE },
-        { title: "Statistics", href: "/teacher/attendance/stats", permission: Permissions.ATTENDANCE_READ },
+        { title: "考勤记录", href: "/teacher/attendance" },
+        { title: "录入考勤", href: "/teacher/attendance/sheet", permission: Permissions.ATTENDANCE_MANAGE },
+        { title: "考勤统计", href: "/teacher/attendance/stats", permission: Permissions.ATTENDANCE_READ },
       ]
     },
     {
-      title: "Schedule Changes",
+      title: "调课申请",
       icon: CalendarClock,
       href: "/teacher/schedule-changes",
       permission: Permissions.SCHEDULE_ADJUST,
     },
     {
-      title: "Diagnostic",
+      title: "学情诊断",
       icon: Stethoscope,
       href: "/teacher/diagnostic",
       permission: Permissions.DIAGNOSTIC_READ,
     },
     {
-      title: "Electives",
+      title: "选修课",
       icon: BookMarked,
       href: "/teacher/elective",
       permission: Permissions.ELECTIVE_MANAGE,
     },
     {
-      title: "Management",
+      title: "年级管理",
       icon: Briefcase,
       href: "/management",
       permission: Permissions.GRADE_MANAGE,
       items: [
-        { title: "Grade Classes", href: "/management/grade/classes" },
-        { title: "Grade Insights", href: "/management/grade/insights" },
+        { title: "年级班级", href: "/management/grade/classes" },
+        { title: "年级洞察", href: "/management/grade/insights" },
       ]
     },
     {
-      title: "Announcements",
+      title: "公告",
       icon: Megaphone,
       href: "/announcements",
       permission: Permissions.ANNOUNCEMENT_READ,
     },
     {
-      title: "Messages",
+      title: "消息",
       icon: Mail,
       href: "/messages",
       permission: Permissions.MESSAGE_READ,
@@ -308,6 +334,11 @@ export const NAV_CONFIG: Partial<Record<Role, NavItem[]>> = {
       href: "/parent/attendance",
       permission: Permissions.ATTENDANCE_READ,
     },
+    {
+      title: "Leave Request",
+      icon: CalendarRange,
+      href: "/parent/leave",
+    },
     {
       title: "Announcements",
       icon: Megaphone,