Novum Xenium v0.1.3 — Android connection header

Android update: the connection header now hides when the server page connects. On app restart it remains visible for two seconds, then hides once connected. Connection and page errors restore the controls. Android Back at the first workspace page opens Connection settings.

Validated with Kotlin tests, Android lint, native UI checks in an isolated Android 15 emulator, and signed APK verification. The UI test simulates connection state; it does not claim physical-phone or router validation.

Install the Android 0.1.3 APK over 0.1.2 to preserve settings. Desktop binaries retain version 0.1.2 in this Android-only update.