feat: 完成用户鉴权相关api

server/utils/getKey.ts

@@ -0,0 +1,7 @@
+import { sign } from 'jsonwebtoken'
+import fs from 'fs'
+import path from 'path'
+
+const getKey = cacheRes(() => fs.readFileSync(path.join(process.cwd(), 'userData/key.txt'), 'utf-8') as string)
+
+export default getKey