feat: GitHub OAuth mechanism implemented

WotBlitzStatisticsPro.Common/Model/GitHubUser.cs

@@ -0,0 +1,47 @@
+using System;
+using System.Text.Json.Serialization;
+
+namespace WotBlitzStatisticsPro.Common.Model
+{
+    /// <summary>
+    /// Represents authenticated GitHub user
+    /// </summary>
+    public class GitHubUser
+    {
+        /// <summary>
+        /// User ID
+        /// </summary>
+        [JsonPropertyName("id")]
+        public long Id { get; set; }
+
+        /// <summary>
+        /// Login
+        /// </summary>
+        [JsonPropertyName("login")]
+        public string? Login { get; set; }
+
+        /// <summary>
+        /// Avatar URL
+        /// </summary>
+        [JsonPropertyName("avatar_url")]
+        public string? Avatar { get; set; }
+
+        /// <summary>
+        /// GitHub profile
+        /// </summary>
+        [JsonPropertyName("html_url")]
+        public string? ProfileLink { get; set; }
+
+        /// <summary>
+        /// HitHub account creation time
+        /// </summary>
+        [JsonPropertyName("created_at")]
+        public DateTime CreatedAt { get; set; }
+
+        /// <summary>
+        /// Followers count
+        /// </summary>
+        [JsonPropertyName("followers")]
+        public int FollowersCount { get; set; }
+    }
+}