fix: 移除渲染进程中的 Buffer 调用, 改用浏览器兼容的 hex 转换

- binary.ts 新增 strToHex/hexToStr/binaryToHex/hexToBinary 四个函数
- KeyList.vue 导入导出功能用这些函数替代 Buffer.from()
- 渲染进程无 Node.js 访问权限, 不应使用 Buffer 全局对象

src/renderer/src/components/KeyList.vue

@@ -4,7 +4,7 @@ import { useVirtualizer } from '@tanstack/vue-virtual'
 import { useKeyStore } from '@renderer/stores/key'
 import { useConnectionStore } from '@renderer/stores/connection'
 import { useI18n } from '@renderer/i18n'
-import { formatKeyName } from '@renderer/utils/binary'
+import { formatKeyName, strToHex, hexToStr, binaryToHex, hexToBinary } from '@renderer/utils/binary'
 import { ElMessage, ElMessageBox } from 'element-plus'
 
 const keyStore = useKeyStore()
@@ -166,8 +166,8 @@ async function exportKeys() {
     try {
       const dumpResult = await window.electronAPI.redis.execute(connStore.activeId, 'DUMP', [key])
       const ttl = await window.electronAPI.redis.getKeyTTL(connStore.activeId, key)
-      const hexKey = Buffer.from(key).toString('hex')
-      const hexValue = Buffer.from(dumpResult, 'binary').toString('hex')
+      const hexKey = strToHex(key)
+      const hexValue = binaryToHex(dumpResult)
       rows.push(`${hexKey},${hexValue},${ttl}`)
       exported++
     } catch {
@@ -229,8 +229,8 @@ async function importKeys() {
     const ttl = parseInt(parts[2], 10)
 
     try {
-      const key = Buffer.from(hexKey, 'hex').toString('utf-8')
-      const value = Buffer.from(hexValue, 'hex').toString('binary')
+      const key = hexToStr(hexKey)
+      const value = hexToBinary(hexValue)
       await window.electronAPI.redis.execute(connStore.activeId, 'RESTORE', [key, String(ttl), value, 'REPLACE'])
       success++
     } catch {

src/renderer/src/utils/binary.ts

@@ -14,3 +14,36 @@ export function formatKeyName(key: string): string {
   }
   return key
 }
+
+/** UTF-8 string → hex (equivalent to Buffer.from(str).toString('hex')) */
+export function strToHex(str: string): string {
+  const bytes = new TextEncoder().encode(str)
+  return Array.from(bytes).map(b => b.toString(16).padStart(2, '0')).join('')
+}
+
+/** hex → UTF-8 string (equivalent to Buffer.from(hex, 'hex').toString('utf-8')) */
+export function hexToStr(hex: string): string {
+  const bytes = new Uint8Array(hex.length / 2)
+  for (let i = 0; i < hex.length; i += 2) {
+    bytes[i / 2] = parseInt(hex.slice(i, i + 2), 16)
+  }
+  return new TextDecoder().decode(bytes)
+}
+
+/** binary string (Latin-1) → hex (equivalent to Buffer.from(str, 'binary').toString('hex')) */
+export function binaryToHex(str: string): string {
+  let hex = ''
+  for (let i = 0; i < str.length; i++) {
+    hex += (str.charCodeAt(i) & 0xff).toString(16).padStart(2, '0')
+  }
+  return hex
+}
+
+/** hex → binary string (Latin-1) (equivalent to Buffer.from(hex, 'hex').toString('binary')) */
+export function hexToBinary(hex: string): string {
+  let str = ''
+  for (let i = 0; i < hex.length; i += 2) {
+    str += String.fromCharCode(parseInt(hex.slice(i, i + 2), 16))
+  }
+  return str
+}