✨ Enrich the user connections

DysonNetwork.Sphere/Auth/OpenId/OidcUserInfo.cs

@@ -16,4 +16,34 @@ public class OidcUserInfo
     public string Provider { get; set; } = "";
     public string? RefreshToken { get; set; }
     public string? AccessToken { get; set; }
+
+    public Dictionary<string, object> ToMetadata()
+    {
+        var metadata = new Dictionary<string, object>();
+
+        if (!string.IsNullOrWhiteSpace(UserId))
+            metadata["user_id"] = UserId;
+
+        if (!string.IsNullOrWhiteSpace(Email))
+            metadata["email"] = Email;
+
+        metadata["email_verified"] = EmailVerified;
+
+        if (!string.IsNullOrWhiteSpace(FirstName))
+            metadata["first_name"] = FirstName;
+
+        if (!string.IsNullOrWhiteSpace(LastName))
+            metadata["last_name"] = LastName;
+
+        if (!string.IsNullOrWhiteSpace(DisplayName))
+            metadata["display_name"] = DisplayName;
+
+        if (!string.IsNullOrWhiteSpace(PreferredUsername))
+            metadata["preferred_username"] = PreferredUsername;
+
+        if (!string.IsNullOrWhiteSpace(ProfilePictureUrl))
+            metadata["profile_picture_url"] = ProfilePictureUrl;
+
+        return metadata;
+    }
 }