- Remove || exit 1 from health-cmd (redundant, breaks SSH heredoc)
- Use --health-cmd 'cmd' format (space, not equals) for proper quoting
- Simplify bitcoin health check to bitcoin-cli getnetworkinfo (no creds needed)
- Fix MariaDB health check nested quote issue
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>