Add Krea2 pose variant selector node

docs/krea2-pov-pose-atlas.md

@@ -17,6 +17,10 @@ geometry summary, cue phrases, avoid phrases, references, and a known generator
 hook. Code should read it through `krea2_pose_variant_catalog.py` instead of
 parsing the JSON directly.
 
+In ComfyUI, use the `SxCP Krea2 Pose Variant` node when you want a workflow to
+select one catalog variant and emit a compatible `hardcore_position_config` for
+the existing Position Pool / Action Filter / Insta-OF chain.
+
 ## Inventory
 
 | Family | Pose images | Control images | First sample |