.chainlit .github alembic chat_workflow public resource .env.example .gitignore CHANGELOG.md Dockerfile LICENSE MIGRATION_PLAN.md README.md UPGRADE_CHECKLIST.md UPGRADE_SUMMARY.md alembic.ini app.py chainlit.md docker-compose.yml poetry-show-backup-v0.3.1.txt poetry.lock poetry.lock.backup pyproject.toml pyproject.toml.backup rollback.sh update_packages.sh wait-for-it.sh