feat: 添加 AI 分类功能，支持交易自动分类与标签生成

android/app/build.gradle

@@ -4,6 +4,7 @@ apply plugin: 'kotlin-android'
 android {
     namespace "com.echo.app"
     compileSdkVersion rootProject.ext.compileSdkVersion
+
     defaultConfig {
         applicationId "com.echo.app"
         minSdkVersion rootProject.ext.minSdkVersion
@@ -11,21 +12,22 @@ android {
         versionCode 301
         versionName "0.3.1"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+
         aaptOptions {
-             // Files and dirs to omit from the packaged assets dir, modified to accommodate modern web apps.
-             // Default: https://android.googlesource.com/platform/frameworks/base/+/282e181b58cf72b6ca770dc7ca5f91f135444502/tools/aapt/AaptAssets.cpp#61
+            // Files and dirs to omit from the packaged assets dir, modified to accommodate modern web apps.
+            // Default: https://android.googlesource.com/platform/frameworks/base/+/282e181b58cf72b6ca770dc7ca5f91f135444502/tools/aapt/AaptAssets.cpp#61
             ignoreAssetsPattern '!.svn:!.git:!.ds_store:!*.scc:.*:!CVS:!thumbs.db:!picasa.ini:!*~'
         }
     }
 
-    // 显式统一 Java / Kotlin 的编译目标版本，保持与 Capacitor 生成配置一致（Java 21）
+    // Keep Java and Kotlin on the same JVM target to avoid Gradle compatibility errors.
     compileOptions {
-        sourceCompatibility JavaVersion.VERSION_21
-        targetCompatibility JavaVersion.VERSION_21
+        sourceCompatibility JavaVersion.VERSION_17
+        targetCompatibility JavaVersion.VERSION_17
     }
 
     kotlinOptions {
-        jvmTarget = '21'
+        jvmTarget = '17'
     }
 
     buildTypes {
@@ -37,7 +39,7 @@ android {
 }
 
 repositories {
-    flatDir{
+    flatDir {
         dirs '../capacitor-cordova-android-plugins/src/main/libs', 'libs'
     }
 }
@@ -54,4 +56,3 @@ dependencies {
 }
 
 apply from: 'capacitor.build.gradle'
-