启用cache-redis插件后导致koishi崩溃

崩溃日志：
```
2025-11-02 13:09:41 [E] app Error: Socket closed unexpectedly
at Socket. (/koishi/node_modules/@redis/client/dist/lib/client/socket.js:194:118)
at Object.onceWrapper (node:events:634:26)
at Socket.emit (node:events:519:28)
at TCP. (node:net:339:12)
```
环境：
redis:7.4.6（docker，1panel）
koishijs/koishi:v1.15.0（docker，1panel）
cache-redis:2.1.3

The report names cache-redis 2.1.3 and the Redis client socket at node_modules/@redis/client/dist/lib/client/socket.js:194. First reproduce the crash with Redis 7.4.6 and Koishi v1.15.0 in the listed Docker setup, then trace the socket-close path; done means enabling the plugin no longer crashes Koishi under the reported conditions.

Written by the indexing model from the issue text.