Everything that was iOS-only in 0.1.x now works on both platforms: the
media strip, the inline poll card, host accessory rows, the countdown
ring, the soft length cap, the filled save pill, re-opening from saved
JSON, and the full-screen media viewer.

Also fixes an Android build that had been failing outright — declaring a
bridge function in the manifest without implementing it stops the app
compiling, and every deploy silently kept the previous APK.