feat: 小趣手表APP Android原生重构 - 基础框架搭建

已完成的模块：
1. 项目脚手架 - Gradle配置、28个包目录、核心基类
2. 权限管理 - 确认定制ROM已预授权所有权限
3. 工具类 - DateUtil/DeviceUtil/NetworkUtil/Md5Util
4. 设备信息 - DevicePrefs/UserPrefs (SharedPreferences)
5. 网络层 - OkHttp+Retrofit+MD5签名拦截器+解绑拦截器
6. 基础UI组件 - NavBarView/QuTipDialog/QuConfirmDialog/ActionButton/iconfont

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

app/proguard-rules.pro

@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile