feat: 增加密码连接

webrtc_controller_flutter/lib/models/signal_message.dart

@@ -8,12 +8,16 @@ import 'dart:convert';
 /// - [toDeviceId]   接收方设备 ID
 /// - [deviceType]   设备类型：CONTROLLER / CONTROLLED
 /// - [payload]      JSON 字符串形式的负载（SDP / ICE 候选等）
+/// - [authType]     鉴权类型：CODE（动态验证码）/ PASSWORD（固定密码）
+/// - [authValue]    鉴权值：动态验证码或固定密码
 class SignalMessage {
   final String? type;
   final String? fromDeviceId;
   final String? toDeviceId;
   final String? deviceType;
   final String? payload;
+  final String? authType;
+  final String? authValue;
 
   const SignalMessage({
     this.type,
@@ -21,6 +25,8 @@ class SignalMessage {
     this.toDeviceId,
     this.deviceType,
     this.payload,
+    this.authType,
+    this.authValue,
   });
 
   factory SignalMessage.fromJson(Map<String, dynamic> json) => SignalMessage(
@@ -29,6 +35,8 @@ class SignalMessage {
         toDeviceId: json['toDeviceId'] as String?,
         deviceType: json['deviceType'] as String?,
         payload: json['payload'] as String?,
+        authType: json['authType'] as String?,
+        authValue: json['authValue'] as String?,
       );
 
   Map<String, dynamic> toJson() => {
@@ -37,6 +45,8 @@ class SignalMessage {
         if (toDeviceId != null) 'toDeviceId': toDeviceId,
         if (deviceType != null) 'deviceType': deviceType,
         if (payload != null) 'payload': payload,
+        if (authType != null) 'authType': authType,
+        if (authValue != null) 'authValue': authValue,
       };
 
   /// 便捷构造方法：payload 为任意 Map，会自动序列化为 JSON 字符串。
@@ -46,6 +56,8 @@ class SignalMessage {
     required String toDeviceId,
     required String deviceType,
     required Map<String, dynamic> payload,
+    String? authType,
+    String? authValue,
   }) {
     return SignalMessage(
       type: type,
@@ -53,6 +65,8 @@ class SignalMessage {
       toDeviceId: toDeviceId,
       deviceType: deviceType,
       payload: jsonEncode(payload),
+      authType: authType,
+      authValue: authValue,
     );
   }