fix: 修复wifi页面连接超时问题

src/pages/ota-wifi.vue

@@ -52,7 +52,7 @@ let wifiConnectTimer = null;
 let wifiConnectRequestId = 0;
 let wifiConnectPollCount = 0;
 const WIFI_CONNECT_POLL_INTERVAL = 2000;
-const WIFI_CONNECT_MAX_POLL_COUNT = 15;
+const WIFI_CONNECT_MAX_POLL_COUNT = 30;
 const WIFI_CONNECT_FAILED_TEXT = "连接失败，请检查WiFi密码或WiFi状态";
 const OTA_MIN_BATTERY = 20;
 const OTA_LOW_BATTERY_TEXT = "电量不足 50%，暂不支持 OTA 升级";
@@ -273,12 +273,15 @@ const cancelWifiConnectPolling = () => {
   uni.hideLoading();
 };
 
-// 判断设备是否已经在线且连接到 WiFi。
+// 判断设备在线且已连 WiFi；online:true + netType:"4g" 表示设备已切网但 WiFi 连接失败。
 const isDeviceConnectedByWifi = (deviceStatus) => {
-  return deviceStatus?.online === true && String(deviceStatus?.netType || "").toLowerCase() === "wifi";
+  if (deviceStatus?.online !== true) return false;
+  const netType = String(deviceStatus?.netType || "").toLowerCase();
+  if (netType === "4g") return "net_fail";
+  return netType === "wifi";
 };
 
-// 轮询设备电量接口，确认设备已经切换到 WiFi 在线状态。
+// 轮询设备电量接口，等待设备切到 WiFi 在线；netType:4g 快速失败，超时 30 次后放弃。
 const waitForDeviceWifiConnected = (requestId) => {
   return new Promise((resolve) => {
     const poll = async () => {
@@ -294,10 +297,19 @@ const waitForDeviceWifiConnected = (requestId) => {
           resolve(false);
           return;
         }
-        if (isDeviceConnectedByWifi(deviceStatus)) {
+        const connResult = isDeviceConnectedByWifi(deviceStatus);
+        // online:true + netType:wifi → 成功
+        if (connResult === true) {
           resolve(true);
           return;
         }
+        // online:true + netType:4g → 立即失败（设备已切 4g，WiFi 连不上）
+        if (connResult === "net_fail") {
+          resolve(false);
+          return;
+        }
+        // online:false + netType:"" → 继续轮询
+        // online:true + netType:"" → 忽略，继续轮询（netType 暂未上报）
       } catch (err) {
         if (requestId !== wifiConnectRequestId) {
           resolve(false);