chore: 提交当前变更

src/Core/TakeoutSaaS.Shared.Abstractions/Tenancy/TenantConstants.cs

@@ -0,0 +1,12 @@
+namespace TakeoutSaaS.Shared.Abstractions.Tenancy;
+
+/// <summary>
+/// 多租户相关通用常量。
+/// </summary>
+public static class TenantConstants
+{
+    /// <summary>
+    /// HttpContext.Items 中租户上下文的键名。
+    /// </summary>
+    public const string HttpContextItemKey = "__tenant_context";
+}