Initial commit: 91dj android client dev_1.0.0

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

analytics_sdk/lib/extension/tab_analytics_extension.dart

@@ -0,0 +1,51 @@
+// lib/extension/tab_analytics_extension.dart
+import 'package:analytics_sdk/entity/analytics_tab.dart';
+import 'package:analytics_sdk/widget/analytics_bottom_nav_wrapper.dart';
+import 'package:analytics_sdk/widget/analytics_tab_bar_wrapper.dart';
+import 'package:flutter/material.dart';
+
+/// 为 [BottomNavigationBar] 提供 analytics 自动埋点能力。
+///
+/// 示例：
+/// ```dart
+/// BottomNavigationBar(
+///   currentIndex: _index,
+///   onTap: (i) => setState(() => _index = i),
+///   items: const [...],
+/// ).withAnalytics(tabs: [
+///   AnalyticsTab('home', '首页'),
+///   AnalyticsTab('discover'),  // pageName 走 PageNameMapper 自动解析
+/// ])
+/// ```
+extension AnalyticsBottomNavExtension on BottomNavigationBar {
+  /// 切换 Tab 时自动上报 AppPageViewEvent + NavigationEvent，
+  /// 并更新 PageLifecycleObserver.currentPageKey。
+  Widget withAnalytics({required List<AnalyticsTab> tabs}) {
+    return AnalyticsBottomNavWrapper(
+      tabs: tabs,
+      child: this,
+    );
+  }
+}
+
+/// 为 [TabBar] 提供 analytics 轻导航埋点能力。
+///
+/// 示例：
+/// ```dart
+/// TabBar(
+///   controller: _tabController,
+///   tabs: const [Tab(text: '视频'), Tab(text: '小说')],
+/// ).withAnalytics(tabs: [
+///   AnalyticsTab('video', '视频'),
+///   AnalyticsTab('novel'),
+/// ])
+/// ```
+extension AnalyticsTabBarExtension on TabBar {
+  /// 切换 Tab 时自动上报 NavigationEvent（轻导航，不更新 currentPageKey）。
+  AnalyticsTabBarWrapper withAnalytics({required List<AnalyticsTab> tabs}) {
+    return AnalyticsTabBarWrapper(
+      tabs: tabs,
+      child: this,
+    );
+  }
+}