chore(security): Improve logging for settings discovery failures

[mathe00]

Enhance the console log messages when settings discovery fails for a script to provide clearer feedback to the user about the potential cause and risks.

• Review discoverScriptSettings and updateScriptSettingsCache in src/python_executor.ts.
• When discovery fails (timeout, non-zero exit, parse error, missing marker - if implemented), ensure plugin.logWarn or plugin.logError messages clearly state:
  • The script path.
  • The specific reason for failure (timeout, exit code, parse error).
  • A warning about potential unintended code execution if the script didn't handle --get-settings-json.
  • A recommendation to use the define_settings/_handle_cli_args structure.
• (Optional) Consider adding a non-persistent Notice after a manual "Refresh Definitions" if any scripts failed discovery.