docs(audio): correct iOS producer name in parseBridgeAudioRoute

Oracle re-review pass on PR #28 flagged that the doc comment named
IOSAudioLifecycleController.classifyDevice, but no such class exists
in the repo. The actual iOS classifier is
AppDelegate.classifyAudioRoute(_:) in ios/Runner/AppDelegate.swift
(line 292), invoked from the route-change and media-services-reset
handlers (lines 189, 237).

Android side is correct: AndroidAudioLifecycleController.classifyDevice
exists at android/app/src/main/kotlin/app/chanora/chanora_flutter/
AndroidAudioLifecycleController.kt.

apps/chanora_flutter/lib/services/audio_lifecycle_service.dart

@@ -10,7 +10,7 @@ const androidAudioLifecycleChannelName = 'chanora/android_audio_lifecycle';
 /// Parses a platform-channel route string into a [rust.BridgeAudioRoute].
 ///
 /// The producer contract is:
-/// - iOS: `IOSAudioLifecycleController.classifyDevice` emits one of
+/// - iOS: `AppDelegate.classifyAudioRoute(_:)` emits one of
 ///   `Earpiece`, `Speaker`, `WiredHeadset`, `BluetoothHfp`, `BluetoothA2dp`,
 ///   `Unknown`.
 /// - Android: `AndroidAudioLifecycleController.classifyDevice` emits one of