Securely migrate OpenClaw Agent (config, memory, skills) to a new machine.
- Added SKILL.md documentation detailing migrator usage, security features, and capabilities. - Emphasized strong encryption (AES-256-GCM) for all exported agent archives. - Outlined support for path normalization and automated capture of system dependencies via Brewfile. - Clarified that exports always require a password; unencrypted exports are not allowed.