feat: #2 add access control by

access code

package.json

@@ -14,6 +14,7 @@
     "@types/react": "^18.0.28",
     "@types/react-dom": "^18.0.11",
     "@types/react-katex": "^3.0.0",
+    "@types/spark-md5": "^3.0.2",
     "@vercel/analytics": "^0.1.11",
     "cross-env": "^7.0.3",
     "emoji-picker-react": "^4.4.7",
@@ -30,6 +31,7 @@
     "remark-gfm": "^3.0.1",
     "remark-math": "^5.1.1",
     "sass": "^1.59.2",
+    "spark-md5": "^3.0.2",
     "typescript": "4.9.5",
     "zustand": "^4.3.6"
   }