Account activation and reliable window reopening

Added account-issued license activation with signed device-bound certificates.

What changed

• Added account-issued license activation with signed device-bound certificates.
• Kept recovery and undo available when paid access expires.
• Fixed Open Filehaven in Quick Search after closing or minimizing the main window.

Compatibility and availability

Regular file tools require macOS 14.0+. Apple Intelligence features require macOS 26+, an eligible Mac, enabled Apple Intelligence and a ready model.

This entry records a development milestone. A verified customer download is not yet published. The version archive shows current availability separately.