refactor: 清理租户API旧模块代码

src/Infrastructure/TakeoutSaaS.Infrastructure/Common/Persistence/DatabaseConnectionDetails.cs

@@ -1,10 +0,0 @@
-namespace TakeoutSaaS.Infrastructure.Common.Persistence;
-
-/// <summary>
-/// 数据库连接信息（连接串与超时/重试设置）。
-/// </summary>
-public sealed record DatabaseConnectionDetails(
-    string ConnectionString,
-    int CommandTimeoutSeconds,
-    int MaxRetryCount,
-    int MaxRetryDelaySeconds);