Transl v0.2.0

This release uplifts Transl for long-running two-person conversations.\n\n- Adds a scrollable, attributed conversation timeline.\n- Adds configurable German and English speaker names.\n- Adds hands-free live mode that translates each natural utterance and alternates language direction.\n- Adds optional automatic text-to-speech, with listening paused during playback.\n- Retains manual editing, push-to-talk, replay, copy, and online/offline routing.\n\nThe APK is debug-signed for direct sideloading.\n\nSHA-256: fb80d6b3180318b2d205b624bb9082e359c102c6c1ad2fd6333387cec7a09396