feat: productionize learning engine and classroom

OpenMAIC/lib/server/classroom-storage.ts

@@ -11,9 +11,11 @@ import {
 } from '@/lib/server/authz/owner-binding';
 
 export const CLASSROOMS_DIR =
-  process.env.CLASSROOM_DATA_DIR ?? path.join(process.cwd(), 'data', 'classrooms');
+  process.env.CLASSROOM_DATA_DIR ??
+  path.join(process.env.LEARNING_DATA_DIR ?? path.join(process.cwd(), 'data'), 'classrooms');
 export const CLASSROOM_JOBS_DIR =
-  process.env.CLASSROOM_JOBS_DIR ?? path.join(process.cwd(), 'data', 'classroom-jobs');
+  process.env.CLASSROOM_JOBS_DIR ??
+  path.join(process.env.LEARNING_DATA_DIR ?? path.join(process.cwd(), 'data'), 'classroom-jobs');
 
 async function ensureDir(dir: string) {
   await fs.mkdir(dir, { recursive: true });