* fix(gateway): safely extract text from message content arrays in prompt builder
When HistoryEntry.body is a content array (e.g. [{type:"text",
text:"hello"}]) rather than a plain string, template literal
interpolation produces "[object Object]" instead of the actual message
text. This affects users whose session messages were stored with array
content format.
Add a safeBody helper that detects non-string body values and uses
extractTextFromChatContent to extract the text, preventing the
[object Object] serialization in both the current-message return path
and the history formatting path.
Fixes openclaw#24688
Co-authored-by: Cursor <cursoragent@cursor.com>
* fix: format gateway agent prompt helper (#24946)
---------
Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: Peter Steinberger <steipete@gmail.com>
