- Add Cube container to docker-compose.dev.yml (pinned v1.3.21)
- Add Cube server config (cube/cube.js) and FeedbackRecords schema
- Add @cubejs-client/core dependency and singleton client in EE module
- Add CUBEJS_API_URL and CUBEJS_API_TOKEN to .env.example
Co-authored-by: Cursor <cursoragent@cursor.com>