feat(android): Add voice interaction service for app launch

android/app/src/main/AndroidManifest.xml

@@ -32,6 +32,18 @@
         android:allowBackup="false"
         android:fullBackupContent="false"
         android:usesCleartextTraffic="true">
+        <service
+            android:name=".ConduitVoiceInteractionSessionService"
+            android:permission="android.permission.BIND_VOICE_INTERACTION"
+            android:exported="true">
+            <meta-data
+                android:name="android.voice_interaction"
+                android:resource="@xml/voice_interaction_service" />
+            <intent-filter>
+                <action android:name="android.service.voice.VoiceInteractionService" />
+            </intent-filter>
+        </service>
+
         <activity
             android:name=".MainActivity"
             android:exported="true"

android/app/src/main/kotlin/app/cogwheel/conduit/ConduitVoiceInteractionSession.kt

@@ -0,0 +1,26 @@
+package app.cogwheel.conduit
+
+import android.content.Context
+import android.content.Intent
+import android.service.voice.VoiceInteractionSession
+import android.os.Bundle
+import android.app.assist.AssistStructure
+import android.app.assist.AssistContent
+
+class ConduitVoiceInteractionSession(context: Context) : VoiceInteractionSession(context) {
+
+    override fun onHandleAssist(
+        data: Bundle?,
+        structure: AssistStructure?,
+        content: AssistContent?
+    ) {
+        super.onHandleAssist(data, structure, content)
+        
+        android.util.Log.d("ConduitVoiceSession", "onHandleAssist called")
+
+        // Launch the main activity when the assistant is triggered
+        val intent = Intent(context, MainActivity::class.java)
+        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+        context.startActivity(intent)
+    }
+}

android/app/src/main/kotlin/app/cogwheel/conduit/ConduitVoiceInteractionSessionService.kt

@@ -0,0 +1,11 @@
+package app.cogwheel.conduit
+
+import android.service.voice.VoiceInteractionSession
+import android.service.voice.VoiceInteractionSessionService
+import android.os.Bundle
+
+class ConduitVoiceInteractionSessionService : VoiceInteractionSessionService() {
+    override fun onNewSession(args: Bundle?): VoiceInteractionSession {
+        return ConduitVoiceInteractionSession(this)
+    }
+}

android/app/src/main/res/xml/voice_interaction_service.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<voice-interaction-service xmlns:android="http://schemas.android.com/apk/res/android"
+    android:sessionService="app.cogwheel.conduit.ConduitVoiceInteractionSessionService"
+    android:recognitionService="android.speech.RecognitionService"
+    android:settingsActivity="app.cogwheel.conduit.MainActivity"
+    android:supportsAssist="true"
+    android:supportsLocalInteraction="true" />