Problem

The published command reference is behind the implementation.

Examples from the current repo:

• /nemoclaw onboard and /nemoclaw eject exist but are not documented
• host commands like debug, uninstall, deprecated setup, help, and --version are missing from the reference

Scope

• Update docs/reference/commands.md
• Document the actual /nemoclaw subcommand surface
• Document all currently supported host CLI commands
• Mark deprecated commands like setup clearly

Acceptance Criteria

• docs/reference/commands.md matches the current CLI implementation
• Slash command docs include status, onboard, and eject
• Host command docs include debug, uninstall, help, --version, and deprecated setup
• No documented command is missing from the implementation, and vice versa

Context

This came out of a CLI review against https://clig.dev/ and a direct comparison of the docs against the current implementation.