feat(call): 实现通话类型图标区分和RTC频道管理功能

- 根据通话类型显示不同的图标：视频通话显示视频图标，语音通话显示语音图标
- 为通话项添加颜色区分，发送方显示白色，接收方显示橙色
- 新增消费一对一RTC频道响应模型定义
- 实现观众离开时断开RTC频道连接功能
- 优化主播离开时的RTC频道销毁逻辑
- 为语音和视频通话分别显示对应的价格信息

lib/controller/discover/room_controller.dart

@@ -375,7 +375,6 @@ class RoomController extends GetxController with WidgetsBindingObserver {
   }
 
   Future<void> leaveChannel() async {
-    // 如果是主播，先销毁 RTC 频道，然后发送结束直播消息
     if (currentRole == CurrentRole.broadcaster) {
       try {
         // 先调用销毁 RTC 频道 API
@@ -393,6 +392,22 @@ class RoomController extends GetxController with WidgetsBindingObserver {
       } catch (e) {
         print('❌ 销毁 RTC 频道异常: $e');
       }
+    } else if (currentRole == CurrentRole.maleAudience || currentRole == CurrentRole.femaleAudience) {
+      try {
+        // 嘉宾离开时调用断开 RTC 频道连接接口
+        final channelId = RTCManager.instance.currentChannelId;
+        if (channelId != null && channelId.isNotEmpty) {
+          final data = {'channelId': channelId};
+          final response = await _networkService.rtcApi.disconnectRtcChannel(data);
+          if (response.data.isSuccess) {
+            print('✅ [RoomController] 嘉宾已断开 RTC 频道连接，channelId: $channelId');
+          } else {
+            print('⚠️ [RoomController] 断开 RTC 频道连接失败: ${response.data.message}');
+          }
+        }
+      } catch (e) {
+        print('❌ [RoomController] 断开 RTC 频道连接异常: $e');
+      }
     }
 
     isLive.value = false;

lib/model/rtc/consume_rtc_channel_response.dart

@@ -0,0 +1,42 @@
+/// 消费一对一RTC频道响应模型
+class ConsumeRtcChannelResponse {
+  final bool isFree;
+  final int status;
+  final int availableBalance;
+  final int unitSellingBalance;
+  final String? code;
+
+  ConsumeRtcChannelResponse({
+    required this.isFree,
+    required this.status,
+    required this.availableBalance,
+    required this.unitSellingBalance,
+    this.code,
+  });
+
+  factory ConsumeRtcChannelResponse.fromJson(Map<String, dynamic> json) {
+    return ConsumeRtcChannelResponse(
+      isFree: json['isFree'] as bool? ?? false,
+      status: json['status'] as int? ?? 0,
+      availableBalance: json['availableBalance'] as int? ?? 0,
+      unitSellingBalance: json['unitSellingBalance'] as int? ?? 0,
+      code: json['code'] as String?,
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      'isFree': isFree,
+      'status': status,
+      'availableBalance': availableBalance,
+      'unitSellingBalance': unitSellingBalance,
+      'code': code,
+    };
+  }
+
+  @override
+  String toString() {
+    return 'ConsumeRtcChannelResponse(isFree: $isFree, status: $status, availableBalance: $availableBalance, unitSellingBalance: $unitSellingBalance, code: $code)';
+  }
+}
+

lib/widget/message/call_item.dart

@@ -136,7 +136,12 @@ class CallItem extends StatelessWidget {
       if (callStatus == CallStatus.rejected) {
         return Assets.imagesRejectCall;
       } else {
-        return Assets.imagesAcceptCall;
+        // 根据通话类型显示不同的图标：视频通话显示视频图标，语音通话显示语音图标
+        if (callType == CallType.video) {
+          return Assets.imagesSendVideoCall;
+        } else {
+          return Assets.imagesSendCall;
+        }
       }
     }
   }
@@ -225,6 +230,7 @@ class CallItem extends StatelessWidget {
                       width: 24.w,
                       height: 24.w,
                       fit: BoxFit.contain,
+                      color: isSentByMe ? Colors.white : Colors.orange,
                     ),
                     SizedBox(width: 8.w),
                     // 状态文本

lib/widget/message/call_type_selection_dialog.dart

@@ -49,7 +49,8 @@ class CallTypeSelectionDialog extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    String price = _formatPrice(voiceProduct);
+    String voicePrice = _formatPrice(voiceProduct);
+    String videoPrice = _formatPrice(videoProduct);
     return Container(
       decoration: BoxDecoration(
         color: Colors.white,
@@ -72,7 +73,7 @@ class CallTypeSelectionDialog extends StatelessWidget {
               padding: EdgeInsets.symmetric(vertical: 16.w),
               child: Center(
                 child: Text(
-                  price.isNotEmpty ? '语音通话 ($price)' : '语音通话',
+                  voicePrice.isNotEmpty ? '语音通话 ($voicePrice)' : '语音通话',
                   style: TextStyle(
                     fontSize: 16.sp,
                     color: const Color.fromRGBO(51, 51, 51, 1),
@@ -98,7 +99,7 @@ class CallTypeSelectionDialog extends StatelessWidget {
               padding: EdgeInsets.symmetric(vertical: 16.w),
               child: Center(
                 child: Text(
-                  price.isNotEmpty ? '视频通话 ($price)' : '视频通话',
+                  videoPrice.isNotEmpty ? '视频通话 ($videoPrice)' : '视频通话',
                   style: TextStyle(
                     fontSize: 16.sp,
                     color: const Color.fromRGBO(51, 51, 51, 1),