Add v9.1.1: Device registry and remote blocking system

- Implement DeviceRegistry for remote device management
- Add dashboard for device tracking and blocking
- Remote device blocking capability with admin control
- Support for device aliasing and notes
- Enhanced device management interface
- Dashboard with real-time device status
- Configurable registry URL in build config

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

app/build.gradle

@@ -8,8 +8,9 @@ android {
         applicationId "com.streamplayer"
         minSdk 21
         targetSdk 33
-        versionCode 90000
-        versionName "9.0.0"
+        versionCode 91010
+        versionName "9.1.1"
+        buildConfigField "String", "DEVICE_REGISTRY_URL", '"http://localhost:4000"'
     }
 
     buildTypes {