android: the nav's badges — transfers in flight on You, unread chats on Community

The desktop's title-bar download ring and its unread indicator, on the
phone's nav: a count on You while Save is fetching, a count on Community
when a chat has unread lines.

ANDROID.md

@@ -213,7 +213,9 @@ Save menu: Save to library (at once when the cache is byte-complete, else
 through the download pipeline) and Save this record for the streamed
 record the queue holds. A moment after boot the phone warms the library's thumbnails the
 desktop's way (`library_art_prewarm` at the cards' edge, one decode at a
-time behind the tiles' gate). The Library's count line carries the collection's hours and the sort
+time behind the tiles' gate). The nav wears two badges the desktop's chrome has: transfers in flight on
+You (the title bar's download ring) and unread chats on Community.
+The Library's count line carries the collection's hours and the sort
 offers By format (lossless by depth and rate first, then by bitrate); the
 empty Search page shows Jump back in, the desktop's. The Library's cards wear the desktop's file stats (`library_album_stats`,
 one call for the whole library: FLAC 24/96, MP3 320k, the size on the