feat: skill expansion — browser, security, SQL, files (16 skills total)

Novas skills instaladas:
- openclaw-agent-browser   v1.0.0  CLI Chromium — navegação, login, screenshots, state
- skill-security-audit    v1.0.0  SAST scanning, prompt injection, secrets audit
- sql-toolkit             v1.0.0  PostgreSQL/MySQL/SQLite — schema, query, otimização
- file                    v1.0.0  Organização de arquivos por contexto
- file-summary            v1.0.0  Extração e resumo de PDFs, Word, Excel

Workspace expandido:
- TOOLS.md: +Browser automation, Security audit, SQL, File management
- AGENTS.md: +Linux Analyst section (comandos, logs, rede, scripts) + Full-stack strategy
- MEMORY.md: 16 skills indexadas, stack map, comandos Linux ref
- SESSION-STATE.md: atualizado com contexto completo
- lock.json: sincronizado com 16 skills instaladas

skills/xcloud-docker-deploy/compose-templates/python-fastapi-postgres.yml

@@ -0,0 +1,66 @@
+# xCloud-ready FastAPI + PostgreSQL + Celery worker
+# Replace OWNER/REPO with your GitHub username/repo
+
+services:
+  app:
+    image: ghcr.io/OWNER/REPO:latest
+    ports:
+      - "8000:8000"
+    environment:
+      DATABASE_URL: postgresql://${POSTGRES_USER}:${POSTGRES_PASSWORD}@db:5432/${POSTGRES_DB}
+      REDIS_URL: redis://redis:6379/0
+      SECRET_KEY: ${SECRET_KEY}
+    depends_on:
+      db:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+    networks:
+      - app-network
+
+  worker:
+    image: ghcr.io/OWNER/REPO:latest
+    command: celery -A app.worker worker --loglevel=info
+    environment:
+      DATABASE_URL: postgresql://${POSTGRES_USER}:${POSTGRES_PASSWORD}@db:5432/${POSTGRES_DB}
+      REDIS_URL: redis://redis:6379/0
+    depends_on:
+      - db
+      - redis
+    restart: unless-stopped
+    networks:
+      - app-network
+
+  db:
+    image: postgres:16-alpine
+    expose:
+      - "5432"
+    environment:
+      POSTGRES_DB: ${POSTGRES_DB}
+      POSTGRES_USER: ${POSTGRES_USER}
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
+    volumes:
+      - db-data:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER}"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+    networks:
+      - app-network
+
+  redis:
+    image: redis:7-alpine
+    expose:
+      - "6379"
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+    networks:
+      - app-network
+
+volumes:
+  db-data:
+
+networks:
+  app-network:
+    driver: bridge