feat: productionize learning engine and classroom

OpenMAIC/lib/server/classroom-job-runner.ts

@@ -44,7 +44,7 @@ export async function resumeClassroomGenerationJob(
 ): Promise<boolean> {
   const job = await readClassroomGenerationJob(jobId);
   if (!job) return false;
-  if (job.status === 'running' || job.status === 'queued') return false;
+  if (job.status !== 'failed' && job.status !== 'cancelled') return false;
   if (!job.input) return false;
 
   await updateClassroomGenerationJob(jobId, {