feat: finalize core modules and gateway

src/Application/TakeoutSaaS.Application/Storage/Contracts/DirectUploadRequest.cs

@@ -0,0 +1,46 @@
+using TakeoutSaaS.Application.Storage.Enums;
+
+namespace TakeoutSaaS.Application.Storage.Contracts;
+
+/// <summary>
+/// 直传凭证请求模型。
+/// </summary>
+public sealed class DirectUploadRequest
+{
+    /// <summary>
+    /// 创建直传请求。
+    /// </summary>
+    public DirectUploadRequest(UploadFileType fileType, string fileName, string contentType, long contentLength, string? requestOrigin)
+    {
+        FileType = fileType;
+        FileName = fileName;
+        ContentType = contentType;
+        ContentLength = contentLength;
+        RequestOrigin = requestOrigin;
+    }
+
+    /// <summary>
+    /// 文件类型。
+    /// </summary>
+    public UploadFileType FileType { get; }
+
+    /// <summary>
+    /// 文件名。
+    /// </summary>
+    public string FileName { get; }
+
+    /// <summary>
+    /// 内容类型。
+    /// </summary>
+    public string ContentType { get; }
+
+    /// <summary>
+    /// 文件长度。
+    /// </summary>
+    public long ContentLength { get; }
+
+    /// <summary>
+    /// 请求来源（Origin/Referer）。
+    /// </summary>
+    public string? RequestOrigin { get; }
+}