use lesson detail endpoint for human language edits

Load human language lesson edit data from the dedicated sub-module lesson detail API so lesson metadata stays aligned with the backend response shape.

Made-with: Cursor

src/api/courses.api.ts

@@ -47,6 +47,7 @@ import type {
   GetSubCoursePrerequisitesResponse,
   AddSubCoursePrerequisiteRequest,
   GetLearningPathResponse,
+  GetSubModuleLessonDetailResponse,
   GetHumanLanguageLessonsResponse,
   GetHumanLanguageHierarchyResponse,
   CreateHumanLanguageLessonRequest,
@@ -298,6 +299,9 @@ export const deleteSubModule = (subModuleId: number) =>
 export const getVideosBySubModule = (subModuleId: number) =>
   http.get<GetSubCourseVideosResponse>(`/course-management/sub-modules/${subModuleId}/videos`)
 
+export const getSubModuleLessonById = (lessonId: number) =>
+  http.get<GetSubModuleLessonDetailResponse>(`/course-management/sub-module-lessons/${lessonId}`)
+
 export const createSubCourseVideo = (data: CreateSubCourseVideoRequest) =>
   http.post("/course-management/sub-module-videos", {
     sub_module_id: data.sub_module_id ?? data.sub_course_id,

src/pages/content-management/HumanLanguagePage.tsx

@@ -47,6 +47,7 @@ import {
   getPracticeQuestions,
   getPracticeQuestionsByPractice,
   getQuestionSetById,
+  getSubModuleLessonById,
   updateQuestionSet,
   updateQuestion,
 } from "../../api/courses.api"
@@ -941,7 +942,7 @@ export function HumanLanguagePage() {
     setLessonDialog({ open: true, lessonId: lesson.id, questionSetId: lesson.question_set_id })
     setSavingLesson(false)
     try {
-      const detail = (await getQuestionSetById(lesson.question_set_id)).data?.data
+      const detail = (await getSubModuleLessonById(lesson.id)).data?.data
       setLessonForm({
         title: detail?.title ?? lesson.title ?? "",
         description: detail?.description ?? "",

src/types/course.types.ts

@@ -702,6 +702,28 @@ export interface HumanLanguageLesson {
   practices: LearningPathPractice[]
 }
 
+export interface SubModuleLessonDetail {
+  id: number
+  sub_module_id: number
+  question_set_id: number
+  intro_video_url?: string | null
+  display_order: number
+  is_active: boolean
+  title: string
+  description?: string | null
+  status: string
+  set_type: string
+  question_count: number
+}
+
+export interface GetSubModuleLessonDetailResponse {
+  message: string
+  data: SubModuleLessonDetail
+  success: boolean
+  status_code: number
+  metadata: unknown
+}
+
 export interface GetHumanLanguageLessonsResponse {
   message: string
   data: {