- Move load_env_file, parse_timeout_seconds, build_remote_script, and
build_ssh_command to scripts/common.py
- Update remote_docker_run.py to import from common module
- Improves code organization and reusability
- remove OPSX Claude commands for apply, archive, explore, and propose
- remove matching OpenSpec workflow skills under `.claude/skills`
- clean up deprecated experimental workflow integration from `.claude`