Refactor room and light configurations for Node-RED integration

- Updated global variable lists in GVL_IO.gvl and GVL_NVL_placeholders.gvl to reflect new room naming conventions and structures.
- Revised PLC_App.st to map new room configurations for lighting control.
- Enhanced documentation in all-lights-and-rooms.md and ha-lights-and-rooms.md to align with updated room and light entity naming.
- Adjusted room-config.js and related Node-RED flows to support the new configuration structure.

This update improves the organization and clarity of room and light management within the Node-RED integration, ensuring consistency across the system.

docs/integration/ha-lights-and-rooms.md

@@ -2,6 +2,15 @@
 
 This guide covers how to create the light/switch entities that Node-RED and the PLC use, and how to assign them to **rooms** (HA **Areas**) so you can manage and display them by room.
 
+Canonical naming in this project is now:
+
+- `input_boolean.<area>_<room>_<light_type>_<index>`
+- Example: `input_boolean.open_plan_living_room_main_1`
+
+Pre-generated helper YAML for the current electrical plan:
+
+- [`lights_by_area_room_type_index.yaml`](lights_by_area_room_type_index.yaml)
+
 ---
 
 ## 1. Concepts
@@ -41,18 +50,13 @@ Create one file per room (or one file with sections) so entities are grouped by
 
 ```yaml
 # PLC/Node-RED lights – entity_id must match room-config.js (entityToRoom, lightEntityMap)
-# Naming: <room>_<light_num>  e.g. living_room_1, kitchen_2
+# Naming: <area>_<room>_<light_type>_<index>  e.g. open_plan_living_room_main_1
 
 input_boolean:
-  # Living room
-  living_room_1:    { name: Living Room 1 }
-  living_room_2:    { name: Living Room 2 }
-  # Kitchen
-  kitchen_1:        { name: Kitchen 1 }
-  kitchen_2:        { name: Kitchen 2 }
-  # Hallway
-  hallway_1:        { name: Hallway 1 }
-  # Add more: master_bedroom_1, bathroom_1, entrance_1, etc.
+  open_plan_living_room_main_1:    { name: Open Plan Living Room Main 1 }
+  open_plan_living_room_spots_1:   { name: Open Plan Living Room Spots 1 }
+  kitchen_kitchen_main_1:          { name: Kitchen Main 1 }
+  bedrooms_hallway_main_1:         { name: Bedrooms Hallway Main 1 }
 ```
 
 Ensure `configuration.yaml` has:
@@ -62,7 +66,7 @@ homeassistant:
   packages: !include_dir_named packages
 ```
 
-Restart Home Assistant. All entities are created. Entity IDs will be `input_boolean.living_room_1`, etc.
+Restart Home Assistant. All entities are created. Entity IDs will be `input_boolean.open_plan_living_room_main_1`, etc.
 
 ### Option B: UI (one by one)
 
@@ -99,9 +103,9 @@ Use the **same entity_id and room logic** in both places.
 
 **Naming convention that works well:**
 
-- Entity ID: `input_boolean.<room>_<number>`  
-  Examples: `living_room_1`, `kitchen_2`, `hallway_1`.
-- In **entityToRoom** use the part without the number: `living_room`, `kitchen`, `hallway` (and any alias like `living_room_new` → `cmd_livingroom`).
+- Entity ID: `input_boolean.<area>_<room>_<light_type>_<index>`  
+  Examples: `open_plan_living_room_main_1`, `kitchen_kitchen_island_1`, `exterior_yard_driveway_1`.
+- In **entityToRoom** use the part without trailing `_<index>`, e.g. `open_plan_living_room_main` or `exterior_yard_driveway`.
 
 When you add a new light in HA (new entity_id), add or update: