fix: refactor notification display logic and add format function

apps/admin/src/utils/notification-display.ts

@@ -0,0 +1,25 @@
+export const notificationTypeLabels: Record<string, string> = {
+  bill_generated: '账单',
+  bill_paid: '账单',
+  check_in: '入住',
+  check_out: '退宿',
+  deposit_due: '押金',
+  deposit_refunded: '押金',
+  class_change: '班级',
+  schedule_conflict: '排课',
+  announcement: '公告',
+};
+
+const teacherRoleLabels: Record<string, string> = {
+  subject_teacher: '任课老师',
+  head_teacher: '班主任',
+  life_teacher: '生活老师',
+  academic_teacher: '学服老师',
+};
+
+export function formatNotificationText(text: string): string {
+  return Object.entries(teacherRoleLabels).reduce(
+    (result, [roleType, label]) => result.replaceAll(roleType, label),
+    text,
+  );
+}