feat: 完成第二版类型清理

packages/audio-capture-napi/src/index.ts

@@ -1,2 +1,14 @@
-const stub: any = {}
-export default stub
+// Auto-generated stub — replace with real implementation
+export function isNativeAudioAvailable(): boolean {
+  return false
+}
+export function isNativeRecordingActive(): boolean {
+  return false
+}
+export function stopNativeRecording(): void {}
+export function startNativeRecording(
+  _onData: (data: Buffer) => void,
+  _onEnd: () => void,
+): boolean {
+  return false
+}