Update configuration to new tool message storage flag

The configuration flag store_tool_results has been renamed to store_tool_messages. This is a breaking change and requires updating any configs, environment variables, or automation that reference the old flag. The rename clarifies what’s stored and aligns terminology across the platform.

Details

Required action: replace store_tool_results with store_tool_messages in your configuration
No change to default behavior beyond the name; update prevents configuration drift and future errors

Who this is for: Any team using the tool message storage flag in deployments, CI/CD, or environment configuration.