Minamp 1.5: Galician interface

- Interface in Galician by default regardless of the phone's language, with
  English selectable under Axustes -> Idioma; switching rebuilds the screens
- All text in tools/strings.py (key -> English, Galician), generating
  res/values/strings.xml (gl) and res/values-en/strings.xml; layouts now use
  string resources
- util/Tr.java: translations for the network and Plex layers, which can't
  read Android resources (falls back to English in desktop tests)
- net/RefusedException: distinguish "server answered but refused" from
  connection failures
- The connection log stays in English for troubleshooting

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

res/layout/view_status.xml

@@ -16,5 +16,5 @@
         android:paddingTop="8dp" />
     <Button android:id="@+id/status_retry" style="@style/ButtonOutline"
         android:layout_width="wrap_content" android:layout_marginTop="12dp"
-        android:text="Try again" android:visibility="gone" />
+        android:text="@string/try_again" android:visibility="gone" />
 </LinearLayout>