Fix Android namespace issues: add namespace to build.gradle, update AGP and Kotlin versions

android/build.gradle

@@ -2,14 +2,14 @@ group 'com.yuanxuan.yx_asr'
 version '1.0.0'
 
 buildscript {
-    ext.kotlin_version = '1.7.10'
+    ext.kotlin_version = '1.8.22'
     repositories {
         google()
         mavenCentral()
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:7.3.0'
+        classpath 'com.android.tools.build:gradle:8.1.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }
@@ -25,6 +25,7 @@ apply plugin: 'com.android.library'
 apply plugin: 'kotlin-android'
 
 android {
+    namespace 'com.yuanxuan.yx_asr'
     compileSdkVersion 33
 
     compileOptions {