feat: productionize learning engine and classroom

OpenMAIC/lib/course-manifest-repo/store.ts

@@ -9,7 +9,8 @@ import path from 'path';
 import type { CourseManifestRecord, CourseManifestRepo } from './types';
 
 export const COURSE_MANIFEST_DIR =
-  process.env.COURSE_MANIFEST_DIR ?? path.join(process.cwd(), 'data', 'course-manifests');
+  process.env.COURSE_MANIFEST_DIR ??
+  path.join(process.env.LEARNING_DATA_DIR ?? path.join(process.cwd(), 'data'), 'course-manifests');
 
 export function isValidCourseManifestId(courseId: unknown): courseId is string {
   return typeof courseId === 'string' && /^[a-zA-Z0-9_-]+$/.test(courseId);