基线备份：thirdparty 变体完成 + Android 4.2 兼容改造前

包含内容：
- thirdparty flavor 独立 applicationId + Intent 入口（ThirdPartyEntryActivity）
- 58 后端接口适配（单 /api 路径、code 0/200、camelCase 字段、UNBOUND 轮询）
- MAC 硬件锚定校验（防一凭证多设备共用）
- EPG mac 覆盖 SDK init（sMacOverride）+ ChannelManger 初始化对齐
- 提示文案优化（设备未注册/权益未绑定）

config.gradle

@@ -0,0 +1,39 @@
+ext {
+    app_android = [
+            compileSdkVersion: 34,
+            minSdkVersion    : 19,
+            targetSdkVersion : 29,
+            multiDexEnabled  : true
+    ]
+
+    app_base_test_dependencies=[
+            junit          : "junit:junit:4.13.2",
+    ]
+
+    app_base_android_test_dependencies=[
+            androidJunit   : "androidx.test.ext:junit:1.1.3",
+            espresso        : "androidx.test.espresso:espresso-core:3.4.0",
+    ]
+    app_base_dependencies = [
+            corektx       : 'androidx.core:core-ktx:1.3.2',
+            appcompat      : 'androidx.appcompat:appcompat:1.3.0',
+            constraint     : 'androidx.constraintlayout:constraintlayout:2.0.4',
+            material       : "com.google.android.material:material:1.4.0",
+    ]
+
+    libsVersion = [
+            retrofit_version = "2.6.0",
+            leanback_version ="1.0.0",
+            fresco_version="2.6.0"
+    ]
+
+    app_libdata_dependencies = [
+            "retrofit" : "com.squareup.retrofit2:retrofit:${retrofit_version}",
+    ]
+
+    app_app_dependencies = [
+            "leanback" :"androidx.leanback:leanback:${leanback_version}",
+            "fresco":"com.facebook.fresco:fresco:${fresco_version}"
+    ]
+
+}