refactor: remove obsolete member management API module

apps/web/app/[locale]/home/[account]/courses/[courseId]/attendance/page.tsx

@@ -29,9 +29,9 @@ export default async function AttendancePage({
   const t = await getTranslations('courses');
 
   const [course, sessions, participants] = await Promise.all([
-    api.getCourse(courseId),
-    api.getSessions(courseId),
-    api.getParticipants(courseId),
+    api.courses.getById(courseId),
+    api.sessions.list(courseId),
+    api.enrollment.listParticipants(courseId),
   ]);
 
   if (!course) return <AccountNotFound />;
@@ -43,7 +43,7 @@ export default async function AttendancePage({
       : null);
 
   const attendance = selectedSessionId
-    ? await api.getAttendance(selectedSessionId)
+    ? await api.attendance.getBySession(selectedSessionId)
     : [];
 
   const attendanceMap = new Map(