Secure Intercom Ubuntu Beta R6 — renewal button fix candidate

End calls, quit Baby Picobot bridges and close Secure Intercom.
Extract this ZIP and run sh install.sh in your Ubuntu graphical desktop account,
without sudo. The installer retains the previous application directory.
Activation, identity, contacts and settings are preserved.

Paste the new activation code and click Complete setup, or press Enter while
focused on the code field. The button is available when idle, including when
a saved installation needs renewal. Setup remains blocked while busy, calling,
receiving a call, or waiting for an outgoing call. The existing backend still
validates the activation code and signed grant.

Upgrades accept stock R5 and the reviewed R5 renewal-button hotfix.
The window and update checker identify this release as R6.

This package has passed offline checks. Live Ubuntu keyring, renewal, Enter-key
and two-way-call acceptance still need testing before production publication.
Registration links and the public update feed have NOT been changed by this ZIP.
