Added avalonia integration and remote proof of concept

Catalog.Communication/Models/UploadImageResponse.cs

@@ -0,0 +1,15 @@
+using System.Text.Json.Serialization;
+
+namespace Catalog.Communication.Models;
+
+public sealed class UploadImageResponse
+{
+    [JsonPropertyName("result")]
+    public bool Result { get; init; }
+
+    [JsonPropertyName("message")]
+    public string Message { get; init; } = string.Empty;
+
+    [JsonPropertyName("imgPath")]
+    public string ImgPath { get; init; } = string.Empty;
+}