Plexamp Lite 1.14.2: stream originals as downloads too

The cut is per account, not per device: a file request from any device signed in to the same account (another
phone, an iPod, the Mac) cut this phone's stream. The player's own stream now also asks for the file as a
download (?download=1), which Plex leaves out of that rule; the plain address follows for servers that refuse
downloads. Transcodes aren't affected.

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

spec.md

@@ -48,8 +48,8 @@ over a Bluetooth speaker.
 - This repo's `tools/setup_toolchain.sh`, `make_roots.py` and `signapk.py` prepare the toolchain all the
   Galaxy Mini apps use: changes there affect every app.
 - Installs to internal storage (SD-card installs get killed during USB sharing).
-- Whole-file fetches of a part (read-ahead, downloads) use `Library.downloadUrls` (`?download=1` first): Plex
-  cuts a device's file stream when the same device starts another, except for downloads.
+- Every request for a track's file (playing, read-ahead, downloads) uses `Library.downloadUrls` (`?download=1`
+  first): Plex cuts an account's file stream when any device on that account starts another, except downloads.
 - `platform/api8` and `platform/api16` keep the same `Platform` methods; shared code calls no API the API 8 jar
   lacks (the api8 compile and Dalvik check catch it). Each build's `versionCode` is the manifest's × 100 + level,
   same key; both APKs are listed in `../tenda-lite/repo/apps.json`.