Fix foreground service permissions and UI issues

- Add CHANGE_NETWORK_STATE for SDK 36 FGS connectedDevice type
- Add logging to TetherApiService for debugging
- Fix status bar clipping with fitsSystemWindows
- Wrap preview box in MaterialCard with scrolling
- Fix Docker build permissions in justfile

justfile

@@ -2,7 +2,7 @@
 
 # Docker image for Android builds
 android_image := "cimg/android:2025.12"
-gradle_cache := "gradle-cache"
+gradle_cache := env_var_or_default("GRADLE_CACHE", justfile_directory() + "/.gradle-cache")
 
 # Default task
 default:
@@ -12,38 +12,41 @@ default:
 build:
     docker run --rm \
         -v {{justfile_directory()}}:/project \
-        -v {{gradle_cache}}:/home/circleci/.gradle \
+        -v {{gradle_cache}}:/gradle-cache \
+        -e GRADLE_USER_HOME=/gradle-cache \
         -w /project \
         {{android_image}} \
-        ./gradlew assembleDebug --no-daemon
+        sh -c './gradlew assembleDebug --no-daemon && chown -R $(stat -c %u:%g /project) /project/.gradle /project/.kotlin /project/app/build 2>/dev/null || true'
     @echo "APK: app/build/outputs/apk/debug/app-debug.apk"
 
 # Build release APK (requires keystore and env vars)
 release:
     docker run --rm \
         -v {{justfile_directory()}}:/project \
-        -v {{gradle_cache}}:/home/circleci/.gradle \
-        -w /project \
+        -v {{gradle_cache}}:/gradle-cache \
+        -e GRADLE_USER_HOME=/gradle-cache \
         -e KEYSTORE_PASSWORD \
         -e KEY_ALIAS \
         -e KEY_PASSWORD \
+        -w /project \
         {{android_image}} \
-        ./gradlew assembleRelease --no-daemon
+        sh -c './gradlew assembleRelease --no-daemon && chown -R $(stat -c %u:%g /project) /project/.gradle /project/.kotlin /project/app/build 2>/dev/null || true'
     @echo "APK: app/build/outputs/apk/release/app-release.apk"
 
 # Clean build artifacts
 clean:
-    rm -rf app/build build .gradle
+    rm -rf app/build build .gradle .kotlin
     @echo "Cleaned"
 
 # Run gradle tasks
 gradle *ARGS:
     docker run --rm \
         -v {{justfile_directory()}}:/project \
-        -v {{gradle_cache}}:/home/circleci/.gradle \
+        -v {{gradle_cache}}:/gradle-cache \
+        -e GRADLE_USER_HOME=/gradle-cache \
         -w /project \
         {{android_image}} \
-        ./gradlew {{ARGS}} --no-daemon
+        sh -c './gradlew {{ARGS}} --no-daemon && chown -R $(stat -c %u:%g /project) /project/.gradle /project/.kotlin /project/app/build 2>/dev/null || true'
 
 # Generate icons from SVG
 icons: