Include AI Companion Results in Runbook Document Node

The Runbook Document node currently allows users to include information only from specific action nodes, such as Map, CLI, Device, Intent, Config Check, Change, and QApp, but does not support pulling in AI Companion results. This enhancement would add AI Companion output as an available content source within the Document node, allowing its results to be incorporated directly into generated runbook documentation. Customers would benefit from more complete documentation that combines AI-driven analysis with existing runbook execution details, improving reporting and review workflows.