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)/student/schedule/page.tsx

@@ -1,4 +1,5 @@
 import { UserX } from "lucide-react"
+import { getTranslations } from "next-intl/server"
 
 import { getStudentClasses, getStudentSchedule } from "@/modules/classes/data-access"
 import { getCurrentStudentUser } from "@/modules/users/data-access"
@@ -14,15 +15,20 @@ export default async function StudentSchedulePage({
 }: {
   searchParams: Promise<SearchParams>
 }) {
+  const t = await getTranslations("student")
   const student = await getCurrentStudentUser()
   if (!student) {
     return (
       <div className="space-y-8">
         <div>
-          <h2 className="text-2xl font-bold tracking-tight">Schedule</h2>
-          <p className="text-muted-foreground">Your weekly timetable.</p>
+          <h2 className="text-2xl font-bold tracking-tight">{t("schedule.title")}</h2>
+          <p className="text-muted-foreground">{t("schedule.description")}</p>
         </div>
-        <EmptyState title="No user found" description="Create a student user to see schedule." icon={UserX} />
+        <EmptyState
+          title={t("schedule.noUser")}
+          description={t("schedule.noUserDesc")}
+          icon={UserX}
+        />
       </div>
     )
   }
@@ -41,8 +47,8 @@ export default async function StudentSchedulePage({
     <div className="space-y-8">
       <div className="flex flex-col justify-between gap-4 md:flex-row md:items-center">
         <div>
-          <h2 className="text-2xl font-bold tracking-tight">Schedule</h2>
-          <p className="text-muted-foreground">Your weekly timetable.</p>
+          <h2 className="text-2xl font-bold tracking-tight">{t("schedule.title")}</h2>
+          <p className="text-muted-foreground">{t("schedule.description")}</p>
         </div>
         <StudentScheduleFilters classes={classes} />
       </div>