feat(rtc): 添加RTC频道详情和座位用户信息模型

- 新增RtcChannelDetail类用于表示RTC频道详情
- 新增RtcSeatUserInfo类用于表示座位上的用户信息
- 实现fromJson和toJson方法支持序列化和反序列化
- 支持解析座位用户的各种属性如用户ID、昵称、头像等
- 添加_bool解析函数以处理不同类型的布尔值转换
- 为座位用户信息添加可选的UID字段
- 支持解析主播、男性、女性座位信息

lib/model/rtc/rtc_channel_detail.dart

@@ -0,0 +1,111 @@
+class RtcChannelDetail {
+  final String channelId;
+  final RtcSeatUserInfo? anchorInfo;
+  final RtcSeatUserInfo? maleInfo;
+  final RtcSeatUserInfo? femaleInfo;
+
+  const RtcChannelDetail({
+    required this.channelId,
+    this.anchorInfo,
+    this.maleInfo,
+    this.femaleInfo,
+  });
+
+  factory RtcChannelDetail.fromJson(Map<String, dynamic> json) {
+    return RtcChannelDetail(
+      channelId: json['channelId']?.toString() ?? '',
+      anchorInfo: _parseSeatInfo(json['anchorInfo']),
+      maleInfo: _parseSeatInfo(json['maleInfo']),
+      femaleInfo: _parseSeatInfo(json['femaleInfo']),
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      'channelId': channelId,
+      'anchorInfo': anchorInfo?.toJson(),
+      'maleInfo': maleInfo?.toJson(),
+      'femaleInfo': femaleInfo?.toJson(),
+    };
+  }
+
+  static RtcSeatUserInfo? _parseSeatInfo(dynamic value) {
+    if (value is Map<String, dynamic>) {
+      return RtcSeatUserInfo.fromJson(value);
+    }
+    return null;
+  }
+}
+
+class RtcSeatUserInfo {
+  final String miId;
+  final String userId;
+  final String nickName;
+  final String profilePhoto;
+  final int genderCode;
+  final int seatNumber;
+  final bool isFriend;
+  final bool isMicrophoneOn;
+  final bool isVideoOn;
+  final int? uid;
+
+  const RtcSeatUserInfo({
+    required this.miId,
+    required this.userId,
+    required this.nickName,
+    required this.profilePhoto,
+    required this.genderCode,
+    required this.seatNumber,
+    required this.isFriend,
+    required this.isMicrophoneOn,
+    required this.isVideoOn,
+    this.uid,
+  });
+
+  factory RtcSeatUserInfo.fromJson(Map<String, dynamic> json) {
+    return RtcSeatUserInfo(
+      miId: json['miId']?.toString() ?? '',
+      userId: json['userId']?.toString() ?? '',
+      nickName: json['nickName']?.toString() ?? '',
+      profilePhoto: json['profilePhoto']?.toString() ?? '',
+      genderCode: json['genderCode'] is int
+          ? json['genderCode'] as int
+          : int.tryParse(json['genderCode']?.toString() ?? '0') ?? 0,
+      seatNumber: json['seatNumber'] is int
+          ? json['seatNumber'] as int
+          : int.tryParse(json['seatNumber']?.toString() ?? '0') ?? 0,
+      isFriend: _parseBool(json['isFriend']),
+      isMicrophoneOn: _parseBool(json['isMicrophoneOn']),
+      isVideoOn: _parseBool(json['isVideoOn']),
+      uid: json['uid'] is int
+          ? json['uid'] as int
+          : int.tryParse(json['uid']?.toString() ?? ''),
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      'miId': miId,
+      'userId': userId,
+      'nickName': nickName,
+      'profilePhoto': profilePhoto,
+      'genderCode': genderCode,
+      'seatNumber': seatNumber,
+      'isFriend': isFriend,
+      'isMicrophoneOn': isMicrophoneOn,
+      'isVideoOn': isVideoOn,
+      'uid': uid,
+    };
+  }
+
+  static bool _parseBool(dynamic value) {
+    if (value is bool) return value;
+    if (value is num) return value != 0;
+    if (value is String) {
+      return value == '1' ||
+          value.toLowerCase() == 'true' ||
+          value.toLowerCase() == 'yes';
+    }
+    return false;
+  }
+}