Minamp 1.6: adjustable UI size, larger text and controls

- New setting "Text and button size" (Normal / Large / Extra large): scales
  text, icons and buttons on top of the phone's density (App.UI_SCALES)
- Larger default text, rows, tiles, touch targets and player icons; all sizes
  now live in res/values/dimens.xml
- Seek bar knob drawn in code, since Android 2.x caches XML shapes at the
  size they were first loaded
- Full-width buttons wrap to two lines instead of cutting words off
- Shorter labels so they fit 240x320 screens in both languages
- tools/check_fit.py checks that UI texts fit their slots at every size and
  language using Droid Sans metrics; build.sh runs it and setup_toolchain.sh
  fetches the font

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

build.sh

@@ -22,6 +22,13 @@ javac -nowarn -Xlint:-options -source 8 -target 8 -encoding UTF-8 -g:source,line
   -d $OUT/classes @$OUT/sources.txt 2>&1 | grep -v -E '^Picked up|^Note:' || true
 test -f $OUT/classes/com/minamp/HomeActivity.class
 
+echo "== text fit check (240x320, all languages and sizes)"
+if [ -f "$T/fonts/droidsans-regular.ttf" ]; then
+  python3 tools/check_fit.py "$T/fonts" || { echo "Some texts don't fit their space (see above)"; exit 1; }
+else
+  echo "(skipped: run tools/setup_toolchain.sh to fetch the Droid Sans font)"
+fi
+
 echo "== Dalvik 2.x link check"
 python3 tools/scan_dalvik.py $OUT/classes $ANDROID_JAR > $OUT/dalvik-scan.txt
 if ! grep -q "^total patterns: 0$" $OUT/dalvik-scan.txt; then