feat(storage): refactor storage service and provider interface, support dynamic registration of storage providers

Services/Interface/IStorageService.cs

@@ -0,0 +1,50 @@
+using Foxel.Models.DataBase;
+using Foxel.Services.Attributes;
+
+namespace Foxel.Services.Interface;
+
+/// <summary>
+/// 统一的存储服务接口
+/// </summary>
+public interface IStorageService
+{
+    /// <summary>
+    /// 根据存储类型获取对应的存储提供者
+    /// </summary>
+    /// <param name="storageType">存储类型</param>
+    /// <returns>存储提供者实例</returns>
+    IStorageProvider GetProvider(StorageType storageType);
+    
+    /// <summary>
+    /// 使用指定存储类型保存文件
+    /// </summary>
+    /// <param name="storageType">存储类型</param>
+    /// <param name="fileStream">文件流</param>
+    /// <param name="fileName">文件名</param>
+    /// <param name="contentType">内容类型</param>
+    /// <returns>存储路径</returns>
+    Task<string> SaveAsync(StorageType storageType, Stream fileStream, string fileName, string contentType);
+    
+    /// <summary>
+    /// 使用指定存储类型删除文件
+    /// </summary>
+    /// <param name="storageType">存储类型</param>
+    /// <param name="storagePath">存储路径</param>
+    Task DeleteAsync(StorageType storageType, string storagePath);
+    
+    /// <summary>
+    /// 使用指定存储类型获取文件URL
+    /// </summary>
+    /// <param name="storageType">存储类型</param>
+    /// <param name="storagePath">存储路径</param>
+    /// <returns>文件URL</returns>
+    string GetUrl(StorageType storageType, string storagePath);
+    
+    /// <summary>
+    /// 使用指定存储类型下载文件
+    /// </summary>
+    /// <param name="storageType">存储类型</param>
+    /// <param name="storagePath">存储路径</param>
+    /// <returns>本地文件路径</returns>
+    Task<string> DownloadFileAsync(StorageType storageType, string storagePath);
+}