Configuration guide for Wan2.2, Alibaba's open-source text-to-video and image-to-video model. Activate when the user wants video generation (modality=video) and the available models include any of "wan", "wan2.2", or "wan_video". Covers both ComfyUI native Wan nodes and the kijai WanVideoWrapper custom-node ecosystem — use the kijai path only if native nodes are missing.