Keep mobile session menus open

What's Changed

• Mobile session action menus now stay open while keyed sidebar updates preserve their session anchor, and are repositioned after structural changes instead of being dismissed by every render.
• Sidebar row patches now update only owned structural classes so transient menu and drag state survives; explicit actions, outside taps, Escape, resize, rotation, or anchor removal still close the menu.

Release integrity

Native archives have matching platform-specific SPDX SBOM assets plus GitHub build-provenance and SBOM attestations. Installers and the built-in updater additionally verify a signed manifest and all packaged-file hashes.

Verification guide · Security policy