- Characters outside the Basic Multilingual Plane - fancy-font ("math italic")
  server names, rare ideographs, symbols - showed as pairs of U+FFFD in
  messages, embeds and Components V2 containers. The markdown parser cut them
  in half; text is merged back. Reply and thread previews, the search text,
  activity party ids and the server's initial letters no longer cut through a
  character either, and non-ASCII text renders as one piece per run
- A code block in a language highlight.js does not know (ansi, log, a typo)
  no longer fails the whole export; it shows as plain text like in Discord
- A role-subscription tier name containing $-patterns is shown as written
- 162 tests; the golden guard rejects U+FFFD in any scenario