GHSA-QF73-2HRX-XPRP PraisonAI has sandbox escape via exception frame traversal in `execute_code` (subprocess mode)

Summary executecode in praisonaiagents.tools.pythontools defaults to sandboxmode="sandbox", which runs user code in a subprocess wrapped with a restricted builtins dict and an AST-based blocklist. The AST blocklist embedded inside the subprocess wrapper blockedattrs, line 143 of pythontools.py...