Add homeassistant skill in unpacked format

- Add complete homeassistant skill source to skills/ directory
- Includes all scripts, references, and automation templates
- Matches format of other skills in repository

skills/homeassistant/assets/automation_templates/notification.yaml

@@ -0,0 +1,34 @@
+automation:
+  - alias: "Notification Automation"
+    id: notification_template
+    description: "Send notifications based on events or conditions"
+
+    trigger:
+      - trigger: state
+        entity_id: binary_sensor.REPLACE_WITH_SENSOR
+        to: "on"
+
+    condition:
+      # Optional: Only notify during specific times
+      - condition: time
+        after: "08:00:00"
+        before: "22:00:00"
+
+    action:
+      - action: notify.notify  # Default notification service
+        data:
+          message: >
+            {{ trigger.to_state.attributes.friendly_name }} is now {{ trigger.to_state.state }}
+            at {{ now().strftime('%H:%M:%S') }}
+          title: "Home Assistant Alert"
+
+      # Optional: Send to specific mobile device
+      # - action: notify.mobile_app_REPLACE_WITH_DEVICE_NAME
+      #   data:
+      #     message: "Custom notification message"
+      #     title: "Alert"
+      #     data:
+      #       # Optional: Add action buttons
+      #       actions:
+      #         - action: "ACTION_NAME"
+      #           title: "Action Button"