Module cli 

Command-line interface for rusmes-server.

The CLI uses clap derive to expose:

• -c/--config <PATH> — explicit config flag (preferred).
• A positional [CONFIG] fallback — preserved for one release for backwards compatibility with older invocations such as rusmes-server rusmes.toml. The fallback emits a deprecation warning to stderr when used.
• --check-config — load + validate the configuration, then exit. No sockets are opened, no servers are spawned.

Resolution rules:

• If --config is provided, it wins (even if a positional argument is also present — the positional is silently ignored to keep the meaning of the flag unambiguous).
• Otherwise, the positional is used (with a deprecation warning).
• Otherwise, the default rusmes.toml in the current directory is used.

Structs

Cli

rusmes-server — RusMES mail-server orchestrator.