feat(activity): 新增 InitActivity 初始化页面，实现网络检测和倒计时功能

app/src/main/java/com/sw/inbound/utils/NetworkUtils.kt

@@ -0,0 +1,24 @@
+package com.sw.inbound.utils
+
+import android.content.Context
+import android.net.ConnectivityManager
+import android.net.NetworkCapabilities
+
+/**
+ * 网络连接检测工具类
+ * 提供检测设备网络连接状态的功能
+ */
+object NetworkUtils {
+
+    /**
+     * 检测设备是否连接到网络
+     * @param context 应用上下文
+     * @return true 表示已连接网络，false 表示未连接
+     */
+    fun isNetworkConnected(context: Context): Boolean {
+        val connectivityManager = context.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
+        val network = connectivityManager.activeNetwork ?: return false
+        val capabilities = connectivityManager.getNetworkCapabilities(network) ?: return false
+        return capabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)
+    }
+}