fix: 修复文件列表为空时的返回值处理并添加图像处理相关依赖

Controllers/MyController.cs

@@ -0,0 +1,12 @@
+using MegghysAPI.Modules;
+using Microsoft.AspNetCore.Mvc;
+
+namespace MegghysAPI.Controllers
+{
+    [Route("api/my")]
+    [ApiController]
+    public class MyController : MControllerBase
+    {
+        
+    }
+}