Add scene-chain option nodes

docs/prompt-pool-routing-map.md

@@ -80,6 +80,16 @@ V2 scene-chain display nodes: `SxCP Scene Cast`, `SxCP Scene Character`,
 `SxCP Scene Branch Pair`, `SxCP Softcore Branch Options`, and
 `SxCP Hardcore Branch Options`.
 
+V2 scene-chain side option nodes: `SxCP Scene Layer Seed Options`,
+`SxCP Scene Cast Options`, `SxCP Scene Character Options`,
+`SxCP Scene Wardrobe Options`, `SxCP Scene Location Layout Options`,
+`SxCP Scene Set Dressing Options`, `SxCP Scene Blocking Options`,
+`SxCP Scene Action Options`, `SxCP Scene Performance Options`,
+`SxCP Scene Camera Options`, `SxCP Scene Composition Options`,
+`SxCP Scene Lighting Options`, and `SxCP Scene Branch Options`. These nodes
+feed typed option sockets into the main scene chain so the visible chain can
+stay organized by movie-scene layer while deeper knobs remain adjacent.
+
 Core helper ownership:
 
 | Python module | What it owns |