Revert "refactor: 清理租户API旧模块代码"

This reverts commit 992930a821.

src/Modules/TakeoutSaaS.Module.Sms/Models/SmsSendRequest.cs

@@ -0,0 +1,42 @@
+namespace TakeoutSaaS.Module.Sms.Models;
+
+/// <summary>
+/// 短信发送请求。
+/// </summary>
+public sealed class SmsSendRequest
+{
+    /// <summary>
+    /// 初始化短信发送请求。
+    /// </summary>
+    /// <param name="phoneNumber">目标手机号码（含国家码，如 +86xxxxxxxxxxx）。</param>
+    /// <param name="templateCode">模版编号。</param>
+    /// <param name="variables">模版变量。</param>
+    /// <param name="signName">短信签名。</param>
+    public SmsSendRequest(string phoneNumber, string templateCode, IDictionary<string, string> variables, string? signName = null)
+    {
+        PhoneNumber = phoneNumber;
+        TemplateCode = templateCode;
+        Variables = new Dictionary<string, string>(variables);
+        SignName = signName;
+    }
+
+    /// <summary>
+    /// 目标手机号。
+    /// </summary>
+    public string PhoneNumber { get; }
+
+    /// <summary>
+    /// 模版编号。
+    /// </summary>
+    public string TemplateCode { get; }
+
+    /// <summary>
+    /// 模版变量。
+    /// </summary>
+    public IReadOnlyDictionary<string, string> Variables { get; }
+
+    /// <summary>
+    /// 可选的签名。
+    /// </summary>
+    public string? SignName { get; }
+}