feat(homeassistant): add kids_lambs light group and daily automations

Creates a light group combining mpho_lamb and hloni_lamb, and sets up
four daily automations: on at sunset/18:00 (full cool white), warm dim
at 20:30, hloni off at 22:00, mpho off at 06:00 — all with fade transitions.
setup-homeassistant.sh now deploys automations.yaml alongside configuration.yaml.

docker-compose-files/homeassistant/config/ha_automations.yaml

@@ -0,0 +1,68 @@
+# Home Assistant Automations
+# Place this file at: ./appdata/homeassistant/automations.yaml
+#
+# Managed in the repo — deployed by setup-homeassistant.sh.
+# Changes made via the HA UI will write back to the mounted file on the server
+# but won't auto-commit to the repo; copy them here to keep the repo in sync.
+
+# Fires at sunset OR 18:00, whichever comes first.
+# In winter (sunset ~17:30) the sun trigger fires first.
+# In summer (sunset ~18:45) the time trigger fires first and the sun trigger
+# later re-applies the same settings — harmless.
+- id: kids_lambs_on_sunset_or_1800
+  alias: "Kids Lambs - On at sunset or 18:00 (full white)"
+  trigger:
+    - platform: sun
+      event: sunset
+    - platform: time
+      at: "18:00:00"
+  action:
+    - action: light.turn_on
+      target:
+        entity_id: light.kids_lambs
+      data:
+        brightness_pct: 100
+        color_temp: 153
+        transition: 5
+  mode: single
+
+- id: kids_lambs_warm_20_30
+  alias: "Kids Lambs - Warm at 20:30"
+  trigger:
+    - platform: time
+      at: "20:30:00"
+  action:
+    - action: light.turn_on
+      target:
+        entity_id: light.kids_lambs
+      data:
+        brightness_pct: 40
+        color_temp: 454
+        transition: 30
+  mode: single
+
+- id: kids_lambs_hloni_off_22_00
+  alias: "Kids Lambs - Hloni off at 22:00"
+  trigger:
+    - platform: time
+      at: "22:00:00"
+  action:
+    - action: light.turn_off
+      target:
+        entity_id: light.hloni_lamb
+      data:
+        transition: 60
+  mode: single
+
+- id: kids_lambs_mpho_off_06_00
+  alias: "Kids Lambs - Mpho off at 06:00"
+  trigger:
+    - platform: time
+      at: "06:00:00"
+  action:
+    - action: light.turn_off
+      target:
+        entity_id: light.mpho_lamb
+      data:
+        transition: 60
+  mode: single

docker-compose-files/homeassistant/config/ha_configuration.yaml

@@ -10,3 +10,13 @@ http:
   use_x_forwarded_for: true
   trusted_proxies:
     - {{CADDY_HOST_IP}}
+
+automation: !include automations.yaml
+
+light:
+  - platform: group
+    name: Kids Lambs
+    unique_id: kids_lambs
+    entities:
+      - light.mpho_lamb
+      - light.hloni_lamb

docker-compose-files/homeassistant/template.yaml

@@ -32,6 +32,7 @@ services:
       - /etc/timezone:/etc/timezone:ro
       - homeassistant_data:/config
       - ./appdata/homeassistant/configuration.yaml:/config/configuration.yaml:ro
+      - ./appdata/homeassistant/automations.yaml:/config/automations.yaml
     depends_on:
       mqtt:
         condition: service_healthy

setup-homeassistant.sh

@@ -78,6 +78,9 @@ write_minimal_env "$TMP_DIR/env.ha" CADDY_HOST_IP
   "$TMP_DIR/env.ha"
 sudo cp "$TMP_DIR/ha_configuration.yaml" "$APPDATA/homeassistant/configuration.yaml"
 sudo chmod 644 "$APPDATA/homeassistant/configuration.yaml"
+echo "==> Copying Home Assistant automations"
+sudo cp "$STACK_DIR/config/ha_automations.yaml" "$APPDATA/homeassistant/automations.yaml"
+sudo chmod 644 "$APPDATA/homeassistant/automations.yaml"
 
 echo "==> Generating docker-compose.homeassistant.yml"
 write_minimal_env "$TMP_DIR/env.compose" TZ DOCKERLOGGING_MAXFILE DOCKERLOGGING_MAXSIZE