Verified Origin Lite v5.0.0

- Adds optional VO-UK Member ID linking to the separate Verified Origin Business Verification service.
- Uses the live Business Verification badge as the single VO public badge when linked and Client Pro is not active.
- Keeps the existing rule that Lite fully stands down when Client Pro is active, preventing Lite / Pro / Business Verification overlap.
- Adds Business Verification status and £99/year application messaging.
- Keeps all Lite trust snapshot and WordPress.org behavior otherwise unchanged.
