fix(teacher): 独立刷新老师目录以缩短配置更新延迟

electron/coding-teacher/config-client.ts

@@ -73,6 +73,11 @@ export const teacherAvailability = (account: TeacherAccount) =>
   teacherCloudRequest<TeacherAvailability>(account, '/api/coding-teacher/config');
 export const teacherCatalog = (account: TeacherAccount) =>
   teacherCloudRequest<TeacherCatalog>(account, '/api/coding-teacher/teachers');
+export async function teacherCatalogRevision(): Promise<{ revision: number }> {
+  const binding = getWorksSquareAccountBinding();
+  if (!binding) throw new TeacherError(401, 'teacher_auth_required', '请先登录。');
+  return teacherCloudRequest({ id: '', binding }, '/api/coding-teacher/teachers/revision');
+}
 export const teacherVersion = (account: TeacherAccount, version: number) =>
   teacherCloudRequest<{ version: number; payload: TeacherDefinition }>(
     account,