First

package.json

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+{
+  "name": "roll-call-system",
+  "version": "1.0.0",
+  "description": "点名系统 - 支持后台管理和用户点名",
+  "main": "server.js",
+  "scripts": {
+    "start": "node server.js",
+    "dev": "node server.js"
+  },
+  "keywords": [
+    "roll-call",
+    "attendance",
+    "qr-code",
+    "nodejs"
+  ],
+  "author": "",
+  "license": "MIT",
+  "engines": {
+    "node": ">=12.0.0"
+  }
+}