Checklist

• Closing issues: Decai auto mode returns syntax error #137
• Mark this if you consider it ready to merge
• I've added tests (optional)
• I wrote some documentation

Description

As suggested in the issue, the solution is to detect the markdown formatting for JSON and remove that. If we detect markdown on the first and last line, we'll remove the lines.

So, if the AI adequately returns pure JSON, this will work.
If the AI returns markdown triple quote, this works too.