[Milky] Note the lowercase Hex

Author: NoirHare

Lagrange.Milky/Utility/Signer.cs

@@ -75,8 +75,8 @@ public Signer(ILogger<Signer> logger, IOptions<CoreConfiguration> options)
                     Uin = uin,
                     Command = cmd,
                     Sequence = seq,
-                    Body = Convert.ToHexString(body.Span),
-                    Guid = Convert.ToHexString(Context.Keystore.Guid),
+                    Body = Convert.ToHexString(body.Span).ToLower(),
+                    Guid = Convert.ToHexString(Context.Keystore.Guid).ToLower(),
                     Qua = Context.AppInfo.Qua,
                 }),
                 System.Text.Encoding.UTF8,