chore: follow-up cleanup for Feishu topic thread fix

- Remove dead metadata.get('reply_to') fallback in _send_raw_message;
  nothing in the codebase ever sets 'reply_to' inside a metadata dict —
  the key only appears as a top-level send_voice() keyword argument
- Simplify _status_thread_metadata construction in run.py to use a
  single dict literal instead of create-then-mutate pattern; the
  or-{} guard was dead since source.thread_id implies _progress_thread_id
  is also set for Feishu
- Add yuqian@zmetasoft.com to AUTHOR_MAP for contributor attribution

scripts/release.py

@@ -771,6 +771,7 @@ AUTHOR_MAP = {
     "steven_chanin@alum.mit.edu": "stevenchanin",
     "fiver@example.com": "halmisen",
     "mayq0422@gmail.com": "yuqianma",
+    "yuqian@zmetasoft.com": "yuqianma",
     "scott@bubble.local": "bassings",
     "highland0971@users.noreply.github.com": "highland0971",
     "sudolewis@gmail.com": "lewislulu",