README: internal install, quality over Bluetooth, stall recovery

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

README.md

@@ -15,8 +15,8 @@ log stays in English since it's meant for troubleshooting.
 1. On the phone: **Settings → Applications → Unknown sources** (tick it).
 2. Copy `Minamp.apk` to the SD card (USB cable, or download it in the browser) and open it
    with a file manager, or from a computer: `adb install Minamp.apk`.
-3. The app can live on the SD card (Settings → Applications → Manage → Minamp → Move to SD card),
-   which helps with the Mini's tiny internal storage.
+3. Minamp installs to internal storage (about 1 MB): an app on the SD card is killed whenever the
+   phone shares its SD card over USB, which stopped the music.
 
 ## Sign in
 
@@ -56,11 +56,16 @@ clock has been reset to before 2024 the certificate date check is skipped rather
 * MP3, AAC (M4A) and Ogg Vorbis play directly. FLAC, ALAC etc. are transcoded to MP3 by the
   server (Android 2.2/2.3 can't decode FLAC).
 * **Menu → Settings**: separate quality for home Wi-Fi (default *Original*) and for away/mobile
-  data (default *192 kbps MP3*); 320/256/192/128/96 kbps available.
+  data (default *192 kbps MP3*); 320/256/192/128/96 kbps available. *Quality over Bluetooth*
+  (default 192 kbps) caps both while the sound goes to a Bluetooth speaker: on the Mini, Wi-Fi and
+  Bluetooth share one radio, and a lighter stream keeps the speaker from stuttering.
 * Seeking in a transcoded track restarts the transcode at the new position.
 * If a stream fails, Minamp re-picks the connection and resumes; if it fails again it downloads
   the whole track first and plays from the SD card. "Download tracks before playing" forces that
-  mode (useful on flaky mobile data).
+  mode (useful on flaky mobile data). Playback that stalls ("playing" but the time doesn't move
+  for 10 s) is recovered the same way.
+* A Bluetooth speaker that drops its link for a moment pauses Minamp, which resumes by itself if the
+  speaker is back within 20 s. Why playback paused or stopped is written to the connection log.
 * Plays are reported to Plex (Now Playing in the Plex dashboard, play counts, resume position).
 
 ## Features