Deployment Config Create

1. Use a Makefile-first workflow, but keep environment data in files.
2. Keep shared values in .deploy.env.common.
3. Keep environment differences in .deploy.env.<ENV_MODE>.
4. Run scripts/create_config.py to patch or create:

• Makefile deployment block (shared command contract)
• Dockerfile template (if missing)
• docker-compose.local.yaml, docker-compose.test.yaml, docker-compose.yaml
• docker-compose.<custom-env>.yaml for custom environments
• .deploy.env.common, .deploy.env.test, .deploy.env.prod, .deploy.env.<custom-env>

5. Use REMOTE_PORT in common or env override files for non-22 SSH/SCP.
6. Keep changes idempotent via managed markers.