feat(app): add lesson-plans, practice, and grade dashboard routes

- Add admin/lesson-plans, parent/lesson-plans, student/lesson-plans routes

- Add student/practice and teacher/practice routes for adaptive practice

- Add management/grade/dashboard and management/grade/practice routes

- Add teacher/lesson-plans error and loading boundaries

- Update existing admin, parent, student, teacher pages with new features

- Update globals.css and proxy middleware

src/app/(dashboard)/admin/course-plans/[id]/edit/page.tsx

@@ -1,15 +1,19 @@
 import { notFound } from "next/navigation"
 import type { Metadata } from "next"
 import type { JSX } from "react"
+import { getTranslations } from "next-intl/server"
 
 import { getCoursePlanById, getSubjectOptions } from "@/modules/course-plans/data-access"
 import { getAdminClasses } from "@/modules/classes/data-access"
 import { getAcademicYears, getStaffOptions } from "@/modules/school/data-access"
 import { CoursePlanForm } from "@/modules/course-plans/components/course-plan-form"
 
-export const metadata: Metadata = {
-  title: "编辑课程计划 - Next_Edu",
-  description: "更新课程计划详情",
+export async function generateMetadata(): Promise<Metadata> {
+  const t = await getTranslations("coursePlans")
+  return {
+    title: `${t("edit.title")} - Next_Edu`,
+    description: t("edit.description"),
+  }
 }
 
 export const dynamic = "force-dynamic"
@@ -19,6 +23,7 @@ export default async function EditCoursePlanPage({
 }: {
   params: Promise<{ id: string }>
 }): Promise<JSX.Element> {
+  const t = await getTranslations("coursePlans")
   const { id } = await params
 
   const [plan, classes, subjects, teachers, academicYears] = await Promise.all([
@@ -34,8 +39,8 @@ export default async function EditCoursePlanPage({
   return (
     <div className="flex h-full flex-col space-y-8 p-8">
       <div>
-        <h2 className="text-2xl font-bold tracking-tight">编辑课程计划</h2>
-        <p className="text-muted-foreground">更新课程计划详情。</p>
+        <h2 className="text-2xl font-bold tracking-tight">{t("edit.title")}</h2>
+        <p className="text-muted-foreground">{t("edit.description")}</p>
       </div>
       <CoursePlanForm
         mode="edit"

src/app/(dashboard)/admin/course-plans/[id]/page.tsx

@@ -1,13 +1,17 @@
 import { notFound } from "next/navigation"
 import type { Metadata } from "next"
 import type { JSX } from "react"
+import { getTranslations } from "next-intl/server"
 
 import { getCoursePlanById } from "@/modules/course-plans/data-access"
 import { CoursePlanDetail } from "@/modules/course-plans/components/course-plan-detail"
 
-export const metadata: Metadata = {
-  title: "课程计划详情 - Next_Edu",
-  description: "查看课程计划详情",
+export async function generateMetadata(): Promise<Metadata> {
+  const t = await getTranslations("coursePlans")
+  return {
+    title: `${t("detail.title")} - Next_Edu`,
+    description: t("detail.description"),
+  }
 }
 
 export const dynamic = "force-dynamic"