fix docker compose v2 compatibility

setup.sh

@@ -27,7 +27,7 @@ header "TinyBoard Spoke Setup"
 
 info "Installing packages..."
 apt-get update -q
-apt-get install -y -q vim autossh docker.io docker-compose git openssh-server
+apt-get install -y -q vim autossh docker.io docker-compose-v2 git openssh-server
 
 info "Adding armbian to docker group..."
 usermod -aG docker armbian 2>/dev/null || true
@@ -151,14 +151,14 @@ docker build \
     -t spoke-autossh .
 
 header "Starting Containers"
-docker-compose up -d
+docker compose up -d
 info "Waiting for tunnel to establish..."
 sleep 6
 
 LOGS=$(docker logs "${SPOKE_NAME}-autossh" 2>&1 || docker logs spoke-autossh 2>&1 || true)
 if echo "$LOGS" | grep -q "remote port forwarding failed"; then
     warn "Tunnel failed — port $TUNNEL_PORT may have been taken between check and connect."
-    warn "Try running: docker-compose down && docker-compose up -d"
+    warn "Try running: docker compose down && docker compose up -d"
     warn "Or re-run this script."
 else
     info "Tunnel is up on port $TUNNEL_PORT."