Polish release on top of 255's native screen-share.

Fixes

• Screen-share no longer falsely toasts "failed" when it's actually working. The native no-viewer watchdog now also clears on the reliable ICE-connected signal (PeerConnectionState alone is flaky on Android), a viewer leaving after connecting ends cleanly, and stopping your own share / service teardown no longer leaks a failure toast.
• Failure toasts now show a human sentence instead of raw reason codes.

Polish

• Mobile network (node) picker: real pressed-state feedback for touch, no grey tap-flash, larger hit targets, a select animation, and a slim themed scrollbar.

Android: versionCode 256 / versionName 1.6.50-alpha. Same signing key as 255 — installs as an in-place update.

Verify: sha256sum -c SHA256SUMS.txt (see github-build-mirror/).

FrogTalk v1.6.48-alpha — Android versionCode 254.

Fixes in this build

• Cross-node DM screen-share now federates to the viewer's node even when they hold a local session (was the root cause of "nothing shows for the other party").
• Cross-node DM calls + a polished "Connecting…" state for call/screen video.
• Native Android screen-share base-URL fix (it never set the signaling base).
• Play foreground-service policy fix: call service is microphone-only (no background-camera FGS).
• Minimized-call avatar now resolves cross-node peers; homepage refresh.

Downloads

• APK (sideload): frogtalk-v254-alpha.apk · also at https://frogtalk.app/download/android
• AAB (Play Store): FrogTalk-1.6.48-alpha-254.aab

Verify: sha256sum -c SHA256SUMS.txt