chore: initial project import

web/dev.mjs

@@ -0,0 +1,7 @@
+// 同时启动展示端（5173）和管理端（5174/admin/）；Ctrl+C 一起退出。
+import { spawn } from 'node:child_process'
+
+const children = ['display', 'admin'].map((name) => spawn('npm', ['run', 'dev', '-w', name], { stdio: 'inherit', shell: true }))
+const stop = () => children.forEach((c) => c.kill())
+process.on('SIGINT', stop)
+process.on('exit', stop)