Dual-mode TLS connector for mail servers — single package with mode
field selecting Postfix or Dovecot defaults. File-based cert/key
deployment with correct permissions (cert 0644, key 0600), optional
chain append, shell injection prevention, and configurable
reload/validate commands. 18 tests covering config validation,
deployment, and security. GUI wizard fields and OpenAPI enum updated.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
shankar0123