chore: release v0.4.1-beta.1

[txbrown]

Beta release for version 0.4.1-beta.1.

Changes since v0.4.0

Features

• ios: Expose explicit audio session controls (configuration options for audio session category, mode, and options)
• setProperty for real-time parameter updates on both iOS and Android
• getBundlePath and getAudioInfo accessors on iOS; getBundlePath and setProperty on Android bridge
• Runtime events — poll processQueuedEvents and emit runtime events to JavaScript on both platforms

Bug Fixes

• ios: Configure AVAudioSession before engine init to prevent buffer mismatch
• ios: Avoid invalid audio session active check
• ios: Use raw value 0x4 for allowBluetoothHFP option
• android: Handle audio interruptions, config changes, and channel count safety
• android: Improve audio device recovery after focus loss
• android: Lock runtimeMutex in loadAudioResource/unloadAudioResource to prevent heap corruption
• android: Add mutex to prevent heap corruption from concurrent runtime access
• Defer audio engine restart on config change to prevent RPC deadlock