feat: persist learner progress and comments

docker-compose.yml

@@ -25,6 +25,12 @@ services:
       FRONTEND_ORIGIN: ${FRONTEND_ORIGIN:?Set the public https URL in Portainer}
       DATABASE_URL: postgresql://${POSTGRES_USER:-compor}:${POSTGRES_PASSWORD}@postgres:5432/${POSTGRES_DB:-compor_hub}
       JWT_SECRET: ${JWT_SECRET:?Set a long random JWT_SECRET in Portainer}
+    healthcheck:
+      test: ["CMD-SHELL", "wget -q -O /dev/null http://localhost:3001/api/v1/health || exit 1"]
+      interval: 15s
+      timeout: 5s
+      retries: 5
+      start_period: 30s
     deploy:
       replicas: 1
       restart_policy: