Add initial configuration files for Dockhand setup

- Create .env.example for environment variable configuration
- Update README.md with setup instructions and usage details
- Add docker-compose configuration for socket-proxy and dockhand services

compose.yaml

@@ -0,0 +1,51 @@
+services:
+  socket-proxy:
+    image: ghcr.io/tecnativa/docker-socket-proxy@sha256:1f5038b54f06c3e18422902cf00ba21803d1c97805aae032e5e6673d532d3459
+    container_name: socket_proxy
+    restart: unless-stopped
+    environment:
+      # Required for Dockhand core functionality
+      - CONTAINERS=1
+      - IMAGES=1
+      - NETWORKS=1
+      - VOLUMES=1
+      - EVENTS=1
+      - POST=1
+      - DELETE=1
+      # Required for dashboard host info and disk usage
+      - INFO=1
+      - SYSTEM=1
+      # Required for vulnerability scanning
+      - ALLOW_START=1
+      - ALLOW_STOP=1
+      - ALLOW_RESTARTS=1
+      # Optional: enable for the container terminal, volume browsing,
+      # and the in-container file browser (all use the Docker exec API)
+      - EXEC=1
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock:ro
+    networks:
+      - socket_proxy
+
+  dockhand:
+    image: fnsys/dockhand:latest
+    container_name: dockhand
+    restart: unless-stopped
+    user: "1000:1000"
+    depends_on:
+      - socket_proxy
+    ports:
+      - "3000:3000"
+    volumes:
+      - /opt/dockhand:/opt/dockhand
+    environment:
+      - DATA_DIR=/opt/dockhand
+      - ENCRYPTION_KEY=${DOCKHAND_ENCRYPTION_KEY?Add encryption key to .env file}
+      - EXPORT_METRICS=true
+    networks:
+      - socket_proxy
+      - default
+
+networks:
+  socket_proxy:
+    internal: true