Plexamp Lite 1.11: Minamp is now Plexamp Lite

Renames the app (label, texts, log files, Plex product name, User-Agent, APK). The package
name, preferences and signing key stay, so it installs over Minamp and keeps its settings.
tools/strings.py catches up with the strings added straight to the XML in 9440536.

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

tools/setup_toolchain.sh

@@ -66,6 +66,6 @@ echo "== signing key"
 if [ ! -f minamp.keystore ]; then
   if [ -f "$PROJ/signing/minamp.keystore" ]; then cp "$PROJ/signing/minamp.keystore" .; else
   keytool -genkeypair -keystore minamp.keystore -storepass minamp123 -keypass minamp123 -alias minamp \
-    -keyalg RSA -keysize 2048 -sigalg SHA1withRSA -validity 20000 -dname "CN=Minamp, O=Minamp"; fi
+    -keyalg RSA -keysize 2048 -sigalg SHA1withRSA -validity 20000 -dname "CN=Plexamp Lite, O=Plexamp Lite"; fi
 fi
 echo "Toolchain ready in $T — build with: TOOLS=$T ./build.sh"