Add new lighting scenes to living room configuration

- Introduced two new scenes: Living_Room_Daytime_Cool with 5500K cool white settings and Living_Room_Evening_Amber with 2700K warm amber settings.
- Updated README.md to reflect the new scenes and their descriptions, enhancing clarity on lighting options available for automations.

config/automation/living_room_color_defaults.yaml

@@ -0,0 +1,79 @@
+######################################################################
+# Living room color defaults: cool white by day, amber by evening.
+# Restores after entry/garage secure and when lights are turned on.
+######################################################################
+
+- alias: 'Living Room Defaults on Turn-On'
+  id: living_room_defaults_on_turn_on
+  mode: single
+  trigger:
+    - platform: state
+      entity_id:
+        - light.living_room_lights
+      from: 'off'
+      to: 'on'
+  condition:
+    - condition: state
+      entity_id: group.entry_points
+      state: 'off'
+    - condition: state
+      entity_id: group.garage_doors
+      state: 'closed'
+  action:
+    - choose:
+        - conditions:
+            - condition: state
+              entity_id: sun.sun
+              state: 'above_horizon'
+          sequence:
+            - service: light.turn_on
+              target:
+                entity_id: light.living_room_lights
+              data:
+                kelvin: 5500
+                brightness: 255
+      default:
+        - service: light.turn_on
+          target:
+            entity_id: light.living_room_lights
+          data:
+            kelvin: 2700
+            brightness: 200
+
+- alias: 'Restore Living Room After Entry Secured'
+  id: restore_living_room_after_entry_secured
+  mode: single
+  trigger:
+    - platform: state
+      entity_id: group.entry_points
+      to: 'off'
+    - platform: state
+      entity_id: group.garage_doors
+      to: 'closed'
+  condition:
+    - condition: state
+      entity_id: group.entry_points
+      state: 'off'
+    - condition: state
+      entity_id: group.garage_doors
+      state: 'closed'
+  action:
+    - choose:
+        - conditions:
+            - condition: state
+              entity_id: sun.sun
+              state: 'above_horizon'
+          sequence:
+            - service: light.turn_on
+              target:
+                entity_id: light.living_room_lights
+              data:
+                kelvin: 5500
+                brightness: 255
+      default:
+        - service: light.turn_on
+          target:
+            entity_id: light.living_room_lights
+          data:
+            kelvin: 2700
+            brightness: 200