feat(ha): add device-available automation with template trigger

- Used platform: template instead of state trigger with entity_id: all
  (entity_id: all is not valid for state triggers in HA)
- Template checks: from_state == 'unavailable' AND to_state not in
  ['unavailable', 'unknown', 'none'] — fires only on recovery
- Removed problematic regex condition; condition: [] keeps it simple
- Action: notify via Telegram bot with device name, entity_id, new state
- mode: queued to handle burst of devices coming online simultaneously

tasks/home-assistant/automations.yaml

@@ -0,0 +1,14 @@
+# Home Assistant Automations
+# Managed via OpenClaw workspace. Push to HA after review.
+
+- id: '1744300000001'
+  alias: 'Alert: Device became available'
+  trigger:
+    - platform: template
+      value_template: "{{ trigger.from_state.state == 'unavailable' and trigger.to_state.state not in ['unavailable', 'unknown', 'none'] }}"
+  condition: []
+  action:
+    - service: notify.telegram_bot_8251509944_126472752
+      data:
+        message: "✅ Устройство онлайн\n📋 {{ trigger.to_state.name }}\n🔧 {{ trigger.entity_id }}\n💡 {{ trigger.to_state.state }}"
+  mode: queued