fix: 为Java项目的OTA接口实现WebSocket认证token生成功能，确保与Python端完全兼容。

main/manager-api/src/main/java/xiaozhi/common/constant/Constant.java

@@ -141,6 +141,11 @@ public interface Constant {
      */
     String SERVER_MQTT_SECRET = "server.mqtt_signature_key";
 
+    /**
+     * WebSocket认证开关
+     */
+    String SERVER_AUTH_ENABLED = "server.auth.enabled";
+
     /**
      * 无记忆
      */

main/manager-api/src/main/java/xiaozhi/modules/device/service/impl/DeviceServiceImpl.java

@@ -1,6 +1,8 @@
 package xiaozhi.modules.device.service.impl;
 
 import java.nio.charset.StandardCharsets;
+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;
 import java.time.Instant;
 import java.util.Base64;
 import java.util.Date;
@@ -169,7 +171,22 @@ public class DeviceServiceImpl extends BaseServiceImpl<DeviceDao, DeviceEntity>
         DeviceReportRespDTO.Websocket websocket = new DeviceReportRespDTO.Websocket();
         // 从系统参数获取WebSocket URL，如果未配置则使用默认值
         String wsUrl = sysParamsService.getValue(Constant.SERVER_WEBSOCKET, true);
-        websocket.setToken("");
+
+        // 检查是否启用认证并生成token
+        String authEnabled = sysParamsService.getValue(Constant.SERVER_AUTH_ENABLED, false);
+        if ("true".equalsIgnoreCase(authEnabled)) {
+            try {
+                // 生成token
+                String token = generateWebSocketToken(clientId, macAddress);
+                websocket.setToken(token);
+            } catch (Exception e) {
+                log.error("生成WebSocket token失败: {}", e.getMessage());
+                websocket.setToken("");
+            }
+        } else {
+            websocket.setToken("");
+        }
+
         if (StringUtils.isBlank(wsUrl) || wsUrl.equals("null")) {
             log.error("WebSocket地址未配置，请登录智控台，在参数管理找到【server.websocket】配置");
             wsUrl = "ws://xiaozhi.server.com:8000/xiaozhi/v1/";
@@ -494,6 +511,40 @@ public class DeviceServiceImpl extends BaseServiceImpl<DeviceDao, DeviceEntity>
         return Base64.getEncoder().encodeToString(signature);
     }
 
+    /**
+     * 生成WebSocket认证token 遵循Python端AuthManager的实现逻辑：token = signature.timestamp
+     * 
+     * @param clientId 客户端ID
+     * @param username 用户名 (通常为deviceId/macAddress)
+     * @return 认证token字符串
+     */
+    private String generateWebSocketToken(String clientId, String username)
+            throws NoSuchAlgorithmException, InvalidKeyException {
+        // 从系统参数获取密钥
+        String secretKey = sysParamsService.getValue(Constant.SERVER_SECRET, false);
+        if (StringUtils.isBlank(secretKey)) {
+            throw new IllegalStateException("WebSocket认证密钥未配置(server.secret)");
+        }
+
+        // 获取当前时间戳(秒)
+        long timestamp = System.currentTimeMillis() / 1000;
+
+        // 构建签名内容: clientId|username|timestamp
+        String content = String.format("%s|%s|%d", clientId, username, timestamp);
+
+        // 生成HMAC-SHA256签名
+        Mac hmac = Mac.getInstance("HmacSHA256");
+        SecretKeySpec keySpec = new SecretKeySpec(secretKey.getBytes(StandardCharsets.UTF_8), "HmacSHA256");
+        hmac.init(keySpec);
+        byte[] signature = hmac.doFinal(content.getBytes(StandardCharsets.UTF_8));
+
+        // Base64 URL-safe编码签名(去除填充符=)
+        String signatureBase64 = Base64.getUrlEncoder().withoutPadding().encodeToString(signature);
+
+        // 返回格式: signature.timestamp
+        return String.format("%s.%d", signatureBase64, timestamp);
+    }
+
     /**
      * 构建MQTT配置信息
      *