build: 修复 user 的定义问题

Author: claude-code-best

packages/remote-control-server/Dockerfile

@@ -29,6 +29,4 @@ EXPOSE 3000
 HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
   CMD bun run -e "fetch('http://localhost:3000/health').then(r => r.ok ? process.exit(0) : process.exit(1)).catch(() => process.exit(1))"
 
-USER app
-
 CMD ["bun", "run", "dist/server.js"]