feat(upload): add image format conversion and quality settings for uploads #6

Models/Enums/ImageFormat.cs

@@ -0,0 +1,28 @@
+namespace Foxel.Models.Enums;
+
+/// <summary>
+/// 支持的图片格式枚举
+/// </summary>
+public enum ImageFormat
+{
+    /// <summary>
+    /// 保持原格式
+    /// </summary>
+    Original = 0,
+    
+    /// <summary>
+    /// JPEG格式
+    /// </summary>
+    Jpeg = 1,
+    
+    /// <summary>
+    /// PNG格式
+    /// </summary>
+    Png = 2,
+    
+    /// <summary>
+    /// WebP格式
+    /// </summary>
+    WebP = 3,
+
+}