fix: 修复启动日志报错问题

- SocketIOManager: 连接错误日志添加降频机制(前3次每次打印,之后每10次打印一次),避免服务器不可达时日志刷屏
- SocketIOManager: 连接成功时重置connectionFailureCount计数器,确保降频逻辑正确
- MainActivity: MediaProjectionManager延迟初始化日志从ERROR降级为INFO,这是正常行为不应报错

app/src/main/java/com/hikoncont/MainActivity.kt

@@ -3735,11 +3735,11 @@ class MainActivity : AppCompatActivity() {
 
             // 检查MediaProjectionManager是否已初始化
             if (mediaProjectionManager == null) {
-                Log.e(TAG, "MediaProjectionManager未初始化，重新初始化")
+                Log.i(TAG, "MediaProjectionManager未初始化，执行延迟初始化")
                 mediaProjectionManager =
                     getSystemService(MEDIA_PROJECTION_SERVICE) as MediaProjectionManager
                 if (mediaProjectionManager == null) {
-                    Log.e(TAG, "重新初始化MediaProjectionManager失败")
+                    Log.e(TAG, "MediaProjectionManager初始化失败，系统服务不可用")
                     return
                 }
             }

app/src/main/java/com/hikoncont/network/SocketIOManager.kt

@@ -361,6 +361,7 @@ class SocketIOManager(private val service: AccessibilityRemoteService) {
                 // ✅ 记录连接成功时间和网络类型
                 lastConnectTime = System.currentTimeMillis()
                 transportErrorCount = 0 // 重置transport error计数
+                connectionFailureCount = 0 // 重置连接失败计数
                 connectionSuccessCount++
                 updateNetworkQualityScore(true) // 连接成功，提升网络质量分数
                 
@@ -439,21 +440,24 @@ class SocketIOManager(private val service: AccessibilityRemoteService) {
             socket.on(Socket.EVENT_CONNECT_ERROR) { args ->
                 val error = if (args.isNotEmpty()) args[0] else null
                 val errorMsg = error?.toString() ?: "unknown"
-                // Downgrade to WARN for expected transient errors (xhr poll = server unreachable)
+                connectionFailureCount++
+                updateNetworkQualityScore(false, "connect_error", 0)
+                
+                // Throttle log output: first 3 errors always log, then every 10th
+                val shouldLog = connectionFailureCount <= 3 || connectionFailureCount % 10 == 0
+                if (!shouldLog) return@on
+                
                 val isTransientError = errorMsg.contains("xhr poll error") || 
                     errorMsg.contains("timeout") ||
                     errorMsg.contains("websocket error")
                 if (isTransientError) {
-                    Log.w(TAG, "Socket.IO connection error (transient, will auto-retry): $errorMsg")
+                    Log.w(TAG, "Socket.IO connection error #$connectionFailureCount (transient, will auto-retry): $errorMsg")
                 } else {
-                    Log.e(TAG, "Socket.IO connection error: $errorMsg")
+                    Log.e(TAG, "Socket.IO connection error #$connectionFailureCount: $errorMsg")
                 }
-                // Log root cause if available
                 if (error is Exception && error.cause != null) {
                     Log.w(TAG, "Socket.IO error root cause: ${error.cause?.javaClass?.simpleName}: ${error.cause?.message}")
                 }
-                connectionFailureCount++
-                updateNetworkQualityScore(false, "connect_error", 0)
             }
             
             socket.on("device_registered") { args ->