fix: use device name for companion remote

close #1256

android/app/src/main/kotlin/com/edde746/plezy/MainActivity.kt

@@ -14,6 +14,7 @@ import android.os.Build
 import android.os.Bundle
 import android.os.Handler
 import android.os.Looper
+import android.provider.Settings
 import android.util.Log
 import android.util.Rational
 import android.view.InputDevice
@@ -189,6 +190,17 @@ class MainActivity : FlutterActivity() {
     )
   }
 
+  /** User-assigned device name (Settings > About > Device name), or null. */
+  private fun getDeviceName(): String? {
+    // The name the user gave the device; also used by Cast/Nearby.
+    val name = Settings.Global.getString(contentResolver, Settings.Global.DEVICE_NAME)
+    if (!name.isNullOrBlank()) return name
+    // Fallback: the Bluetooth name usually mirrors the device name. Reading the
+    // settings string needs no BLUETOOTH permission (unlike BluetoothAdapter).
+    val bt = Settings.Secure.getString(contentResolver, "bluetooth_name")
+    return if (!bt.isNullOrBlank()) bt else null
+  }
+
   override fun onCreate(savedInstanceState: Bundle?) {
     // Apply persisted theme color to the window background before anything
     // else renders.  This prevents a white flash between the native splash
@@ -427,6 +439,7 @@ class MainActivity : FlutterActivity() {
     MethodChannel(flutterEngine.dartExecutor.binaryMessenger, DEVICE_CHANNEL).setMethodCallHandler { call, result ->
       when (call.method) {
         "getTvDetection" -> result.success(getAndroidTvDetection())
+        "getDeviceName" -> result.success(getDeviceName())
         else -> result.notImplemented()
       }
     }

lib/providers/companion_remote_provider.dart

@@ -19,6 +19,7 @@ import '../services/companion_remote/lan_discovery_service.dart';
 import '../services/companion_remote/remote_auth_context.dart';
 import '../services/companion_remote/remote_auth_service.dart';
 import '../utils/app_logger.dart';
+import '../utils/platform_detector.dart';
 import '../mixins/disposable_change_notifier_mixin.dart';
 
 export '../services/companion_remote/lan_discovery_service.dart' show DiscoveredHost;
@@ -79,7 +80,8 @@ class CompanionRemoteProvider with ChangeNotifier, DisposableChangeNotifierMixin
     try {
       if (Platform.isAndroid) {
         final androidInfo = await deviceInfo.androidInfo;
-        _deviceName = '${androidInfo.brand} ${androidInfo.model}';
+        final osName = await TvDetectionService.getAndroidDeviceName();
+        _deviceName = osName ?? '${androidInfo.brand} ${androidInfo.model}';
         _platform = 'Android';
       } else if (Platform.isIOS) {
         final iosInfo = await deviceInfo.iosInfo;
@@ -94,8 +96,8 @@ class CompanionRemoteProvider with ChangeNotifier, DisposableChangeNotifierMixin
         _deviceName = windowsInfo.computerName;
         _platform = 'Windows';
       } else if (Platform.isLinux) {
-        final linuxInfo = await deviceInfo.linuxInfo;
-        _deviceName = linuxInfo.name;
+        final host = Platform.localHostname.trim();
+        _deviceName = (host.isNotEmpty && host != 'localhost') ? host : (await deviceInfo.linuxInfo).name;
         _platform = 'Linux';
       }
     } catch (e) {

lib/utils/platform_detector.dart

@@ -116,6 +116,20 @@ class TvDetectionService {
     }
   }
 
+  /// User-assigned Android device name (Settings > About > Device name), or
+  /// null if unavailable. Android only.
+  static Future<String?> getAndroidDeviceName() async {
+    if (!Platform.isAndroid) return null;
+    try {
+      final name = (await _deviceChannel.invokeMethod<String>('getDeviceName'))?.trim();
+      return (name == null || name.isEmpty) ? null : name;
+    } on MissingPluginException {
+      return null;
+    } on PlatformException {
+      return null;
+    }
+  }
+
   /// Update the user force-TV override and recompute the effective flag.
   void setForceTv(bool value) {
     _forceTv = value;