Add OpenClaw, backup automation, health checks, Telegram notifications

Phase 6: OpenClaw docker-compose (port 3100) with health check
Phase 9: Enhanced backup.sh with full DB/config coverage + Telegram alerts
Phase 10: Health checks on all compose files, /api/system/notify endpoint

openclaw/docker-compose.yml

@@ -0,0 +1,36 @@
+services:
+  openclaw-gateway:
+    image: ghcr.io/openclaw/openclaw:latest
+    container_name: openclaw-gateway
+    restart: unless-stopped
+    ports:
+      - "3100:18789"
+    environment:
+      HOME: /home/node
+      TERM: xterm-256color
+      OPENCLAW_GATEWAY_TOKEN: ${OPENCLAW_GATEWAY_TOKEN}
+      ANTHROPIC_API_KEY: ${ANTHROPIC_API_KEY}
+      TELEGRAM_BOT_TOKEN: ${TELEGRAM_BOT_TOKEN:-}
+    volumes:
+      - ./data:/home/node/.openclaw
+    init: true
+    command:
+      [
+        "node",
+        "dist/index.js",
+        "gateway",
+        "--bind",
+        "lan",
+        "--port",
+        "18789",
+      ]
+    healthcheck:
+      test: ["CMD", "node", "-e", "fetch('http://localhost:18789').then(r=>{process.exit(r.ok?0:1)}).catch(()=>process.exit(1))"]
+      interval: 30s
+      timeout: 5s
+      retries: 3
+    logging:
+      driver: json-file
+      options:
+        max-size: "10m"
+        max-file: "3"