style: 格式化 ChatManager.cs 的参数与空白，调整换行

- 对构造函数参数、局部变量赋值和方法内空白进行了排版调整（换行与缩进、空格规范化）。
- 删除/添加了一些空行以提高可读性。
- 未修改任何业务逻辑或行为，仅代码样式层面的变更。

Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain/Managers/ChatManager.cs

@@ -33,9 +33,12 @@ public class ChatManager : DomainService
     private readonly UsageStatisticsManager _usageStatisticsManager;
     private readonly PremiumPackageManager _premiumPackageManager;
     private readonly AiGateWayManager _aiGateWayManager;
+
     public ChatManager(ILoggerFactory loggerFactory,
         ISqlSugarRepository<MessageAggregateRoot> messageRepository,
-        ISqlSugarRepository<AgentStoreAggregateRoot> agentStoreRepository, AiMessageManager aiMessageManager, UsageStatisticsManager usageStatisticsManager, PremiumPackageManager premiumPackageManager, AiGateWayManager aiGateWayManager)
+        ISqlSugarRepository<AgentStoreAggregateRoot> agentStoreRepository, AiMessageManager aiMessageManager,
+        UsageStatisticsManager usageStatisticsManager, PremiumPackageManager premiumPackageManager,
+        AiGateWayManager aiGateWayManager)
     {
         _loggerFactory = loggerFactory;
         _messageRepository = messageRepository;
@@ -64,8 +67,8 @@ public class ChatManager : DomainService
         response.Headers.TryAdd("Cache-Control", "no-cache");
         response.Headers.TryAdd("Connection", "keep-alive");
 
-       var modelDescribe=await _aiGateWayManager.GetModelAsync(ModelApiTypeEnum.OpenAi,modelId);
-        
+        var modelDescribe = await _aiGateWayManager.GetModelAsync(ModelApiTypeEnum.OpenAi, modelId);
+
         //token状态检查，在应用层统一处理
         var client = new OpenAIClient(new ApiKeyCredential(token),
             new OpenAIClientOptions
@@ -177,7 +180,7 @@ public class ChatManager : DomainService
                         };
                         //设置倍率
                         usage.SetSupplementalMultiplier(modelDescribe.Multiplier);
-                        
+
                         //创建系统回答，用于计费统计
                         await _aiMessageManager.CreateSystemMessageAsync(userId, sessionId, new MessageInputDto
                         {
@@ -185,7 +188,7 @@ public class ChatManager : DomainService
                             ModelId = modelId,
                             TokenUsage = usage
                         }, tokenId);
-                        
+
                         //创建用量统计，用于统计分析
                         await _usageStatisticsManager.SetUsageAsync(userId, modelId, usage, tokenId);
 
@@ -198,7 +201,7 @@ public class ChatManager : DomainService
                                 await _premiumPackageManager.TryConsumeTokensAsync(userId, totalTokens);
                             }
                         }
-                        
+
                         await SendHttpStreamMessageAsync(httpContext,
                             new AgentResultOutput
                             {