feat(agent): persist Pages dir in Docker deploy volume

Mount openflare-agent-pages to /data/var/lib/openflare/pages so
container rebuilds keep local Pages packages.

frontend/app/(main)/nodes/components/node-utils.ts

@@ -151,6 +151,7 @@ export function buildEdgeDockerInstallCommand(
     `docker rm -f openflare-agent 2>/dev/null || true`,
     `docker run -d --name openflare-agent --restart unless-stopped \\`,
     `  -p 80:80 -p 443:443/tcp -p 443:443/udp \\`,
+    `  -v openflare-agent-pages:/data/var/lib/openflare/pages \\`,
     `  -e OPENFLARE_SERVER_URL=${serverUrl} \\`,
     `  -e OPENFLARE_AGENT_TOKEN=${agentToken} \\`,
     `  ${image}`,