ToolCallMessage

Left border tracks tool lifecycle; hover brightens for interactivity.

Check if this tool message has output to display.

Compose the tool call message layout.

Cache widget references and hide all status/output areas initially.

Mark the tool as running (approved and executing).

Call this when approval is granted to start the running animation.

Mark the tool call as successful.

Mark the tool call as failed.

Mark the tool call as rejected by user.

Mark the tool call as skipped (due to another rejection).

Toggle between preview and full output display.

Toggle output expansion, or show timestamp if no output.