Two fixes for rendering aborted tools in --continue mode:
1. In renderInitialMessages: Check if assistant message was aborted/errored
and immediately mark tool execution components as failed instead of
leaving them in pending state.
2. In AssistantMessageComponent: Don't show "Aborted" text when there are
tool calls in the message, since the tool execution components will
show the error state themselves. This prevents duplicate error messages.
Now aborted tools show properly as red with "Operation aborted" message,
without the duplicate "Aborted" text above them.
1e857e0a6a