feat: ccloseout of changes for audit

lib/bds/desktop/shell_live/chat_editor.ex

@@ -545,8 +545,13 @@ defmodule BDS.Desktop.ShellLive.ChatEditor do
 
   @spec markdown_html(binary()) :: Phoenix.HTML.Safe.t()
   def markdown_html(content) when is_binary(content) do
+    # Match Earmark's defaults (GFM tables, strikethrough, autolinks); escape
+    # raw HTML to text rather than rendering it, as the old escape: true did.
     html =
-      case MDEx.to_html(content) do
+      case MDEx.to_html(content,
+             extension: [table: true, strikethrough: true, autolink: true],
+             render: [escape: true]
+           ) do
         {:ok, rendered} -> rendered
         {:error, _reason} -> ""
       end