Chat: read the host's own wording of each line

DECAL handed the original each line as the chat window shows it, tell links
included; the host now reports the same wording (DisplayText). Kill, rare,
combat and !report parsing and the chat frame read that, with tags stripped
for the frame exactly as before; the plugin's own formatter remains only for
a line the host did not word.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

src/OpenAC.MosswartMassacre/Streams/ChatLineText.cs

@@ -19,6 +19,12 @@ internal static class ChatLineText
 
     public static string Of(in PluginChatMessage message)
     {
+        // The host's own wording, tell links included, is the text the
+        // original was handed; the rest of this method is the fallback for a
+        // line the host did not word.
+        if (!string.IsNullOrEmpty(message.DisplayText))
+            return message.DisplayText;
+
         string text = message.Text ?? string.Empty;
         string sender = message.Sender ?? string.Empty;
         bool own = string.IsNullOrEmpty(sender) || sender == "You";