fix(feishu): issue where streaming edits in Feishu show extra leading newlines

gateway/platforms/feishu.py

@@ -1700,6 +1700,7 @@ class FeishuAdapter(BasePlatformAdapter):
         if not self._client:
             return SendResult(success=False, error="Not connected")
 
+        content = self.format_message(content)
         try:
             msg_type, payload = self._build_outbound_payload(content)
             body = self._build_update_message_body(msg_type=msg_type, content=payload)