mop-flow v1.4.2

1.4.2 - Background Brain Relay

• Added mop-flow service for per-machine background relay management.
• mop-flow link now registers linked projects into a local service registry.
• Added Windows Startup autostart and Linux systemd user autostart.
• Added compact TUI Control Center actions for Link, Relay, and Service.
• Removed the Pixel Office GUI item from the TUI menu.
• Added --menu-json for non-interactive menu verification.
• Kept link tokens private in each project's gitignored .MOP/link.json; the service registry stores only paths and public relay metadata.
• Added smoke coverage for the service registry and token-safety behavior.

Verification:

• npm run validate
• npm test
• npm run doctor
• npm pack --dry-run