- Add Windows PowerShell installer with SHA256 verification and PATH setup
- Add macOS installer with arch detection and quarantine removal
- Enhance Linux installer with amd64/arm64 architecture detection
- Rename macOS migrate_remote.sh to migrate-remote.sh
- Download and verify tosutil binary via SHA256 checksum
- Install to /usr/local/bin with root:root 755 permissions
- Add post-installation instructions utilising environment variables
- Include reference link to official Volcengine documentation
- Localised Chinese comments and strings to British English
- Removed step numbering from comments
- Old and new hostnames are now mandatory script parameters