Puppet's generate() splices stderr into stdout, so the Python helper's
error prints and its absent HTTP timeouts can corrupt a catalog compile or
hang it forever.
- sign SSH host certificates via Vault approle or kubernetes auth
- emit only {"signed_key": ...} on stdout, errors on stderr, non-zero exit
- forward valid_principals to Vault unsplit; bound every call by a timeout
- keep TLS verification skippable via tls_skip_verify (default true)
- package the binary and completions as an RPM; add PR and tag pipelines
