feat: file-log-plugin should combine with log-rotate

### Description

I found that file-log-plugin just write one file. I think we can combine with log-rotate(or another method) plugin to split file.

The issue identifies file-log-plugin and log-rotate as the relevant entry points, but names no files or tests. First inspect how file-log-plugin writes its single file and how log-rotate splits files, then determine whether they can be combined or another method is needed. Done means file logging supports the requested file splitting with tests demonstrating the behavior.

Written by the indexing model from the issue text.