图片上传hash 有bug,修复

src/uitls/hash.ts

@@ -1,16 +1,16 @@
-import MD5 from 'crypto-js/md5.js';
+import crypto from 'node:crypto';
 import fs from 'node:fs';
 
 export const getHash = (file: string) => {
   if (!fs.existsSync(file)) return '';
-  const content = fs.readFileSync(file, 'utf-8');
-  return MD5(content).toString();
+  const buffer = fs.readFileSync(file); // 不指定编码,返回 Buffer
+  return crypto.createHash('md5').update(buffer).digest('hex');
 };
 
 export const getBufferHash = (buffer: Buffer) => {
-  return MD5(buffer.toString()).toString();
+  return crypto.createHash('md5').update(buffer).digest('hex');
 };
 
 export const getStringHash = (str: string) => {
-  return MD5(str).toString();
-}
+  return crypto.createHash('md5').update(str).digest('hex');
+}