fix(android): surface mpv command failures

android/app/src/main/kotlin/com/edde746/plezy/mpv/MpvPlayerPlugin.kt

@@ -159,7 +159,7 @@ open class MpvPlayerPlugin(
       "openContentFd" -> handleOpenContentFd(call, result)
       "closeContentFd" -> handleCloseContentFd(call, result)
       "isInitialized" -> result.success(playerCore?.isInitialized ?: false)
-      "setLogLevel" -> result.success(null)
+      "setLogLevel" -> handleSetLogLevel(call, result)
       else -> result.notImplemented()
     }
   }
@@ -358,14 +358,30 @@ open class MpvPlayerPlugin(
 
     val core = playerCore
     if (core == null) {
-      result.success(null)
+      result.error("NOT_INITIALIZED", "Player not initialized", null)
       return
     }
-    core.command(args.toTypedArray()) {
-      result.success(null)
+    core.command(args.toTypedArray()) { success ->
+      if (success) {
+        result.success(null)
+      } else {
+        result.error("COMMAND_FAILED", "mpv command failed", args)
+      }
     }
   }
 
+  private fun handleSetLogLevel(call: MethodCall, result: MethodChannel.Result) {
+    if (call.argument<String>("level") == null) {
+      result.error("INVALID_ARGS", "Missing 'level'", null)
+      return
+    }
+    result.error(
+      "UNSUPPORTED",
+      "Runtime mpv log level changes are not supported on Android",
+      null
+    )
+  }
+
   private fun handleSetVisible(call: MethodCall, result: MethodChannel.Result) {
     val visible = call.argument<Boolean>("visible")
 

android/app/src/test/kotlin/com/edde746/plezy/mpv/MpvPlayerPluginTest.kt

@@ -0,0 +1,54 @@
+package com.edde746.plezy.mpv
+
+import io.flutter.plugin.common.MethodCall
+import io.flutter.plugin.common.MethodChannel
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNull
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.robolectric.RobolectricTestRunner
+
+@RunWith(RobolectricTestRunner::class)
+class MpvPlayerPluginTest {
+
+  @Test
+  fun commandWithoutCoreReportsNotInitialized() {
+    val result = RecordingResult()
+
+    MpvPlayerPlugin().onMethodCall(
+      MethodCall("command", mapOf("args" to listOf("seek", "1", "absolute"))),
+      result
+    )
+
+    assertEquals("NOT_INITIALIZED", result.errorCode)
+    assertNull(result.successValue)
+  }
+
+  @Test
+  fun setLogLevelReportsUnsupported() {
+    val result = RecordingResult()
+
+    MpvPlayerPlugin().onMethodCall(
+      MethodCall("setLogLevel", mapOf("level" to "warn")),
+      result
+    )
+
+    assertEquals("UNSUPPORTED", result.errorCode)
+    assertNull(result.successValue)
+  }
+
+  private class RecordingResult : MethodChannel.Result {
+    var successValue: Any? = null
+    var errorCode: String? = null
+
+    override fun success(result: Any?) {
+      successValue = result
+    }
+
+    override fun error(errorCode: String, errorMessage: String?, errorDetails: Any?) {
+      this.errorCode = errorCode
+    }
+
+    override fun notImplemented() = Unit
+  }
+}