Backport from the iOS version: never mark early endings as played, stall warning, Close

- An episode only counts as played when playback reaches the last minute.
  Saved files that "complete" early (cut-short download, SD card problems) were
  marked as played on the server, as were streams ending 30-60 s early; now a
  stream is retried and a file is reported.
- "Playing" but the position not moving for 12 s: say so.
- Menu -> "Pechar MiniABS" (Latest/Shows/Saved and the player): save the
  position, stop playback and close the app.

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

README.md

@@ -68,14 +68,15 @@ Android 2.x's media player can't stream https:// URLs, so for HTTPS servers Mini
 - **Shows**: every podcast; tap one for its episodes. Menu key → sort oldest/newest, hide played.
 - **Saved**: episodes downloaded to the SD card, plus download progress.
 - **Tap** an episode to play. **Long-press** for Download, Delete download, Mark as played/unplayed, Go to show.
-- **Player**: skip back/forward (set the amounts in Settings), seek bar, show notes. Menu key → sleep timer, mark as played, download, stop.
+- **Player**: skip back/forward (set the amounts in Settings), seek bar, show notes. Menu key → sleep timer, mark as played, download, stop, close MiniABS.
+- **Close**: Menu key → *Pechar MiniABS* (on the Latest/Shows/Saved screen or the player) saves the position, stops playback and closes the app.
 - **Headset buttons**: play/pause; next/previous skip forward/back. Playback pauses when headphones are unplugged and during calls.
 
 Colored dots: blue = new, amber = in progress (with a bar), grey = played.
 
 ## Progress sync
 
-Playback opens an Audiobookshelf session and syncs every 15 seconds and on pause, so progress follows you to other apps. Saved episodes play offline; their positions are kept on the phone and sent to the server next time you're online (or tap refresh on the Saved tab).
+Playback opens an Audiobookshelf session and syncs every 15 seconds and on pause, so progress follows you to other apps. An episode only counts as played when playback gets within a minute of its end: a stream that drops or a saved file cut short is retried or reported, never marked as played. If playback says it's playing but stops moving for 12 seconds, MiniABS says so. Saved episodes play offline; their positions are kept on the phone and sent to the server next time you're online (or tap refresh on the Saved tab).
 
 ## Limits