Improve logging

A magyar leírás lent található

## English description

Right now the logfile is one big blog. It'd be nice to have e.g. daily files. We can use [lograge](https://github.com/roidrage/lograge) and [whenever](https://github.com/javan/whenever) for unifying and scheduling.

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## Magyar leírás

Jelenleg a production log egy nagy fájl, ezt jó lenne a későbbiekben több kisebb fájlban tárolni (pl. napi mentések). [lograge](https://github.com/roidrage/lograge) és [whenever](https://github.com/javan/whenever) gemeket használhatunk hozzá.

Begin with the production logging configuration; the issue names no file or test, so first locate the logger setup and determine whether lograge or whenever is already present. Done means production logs are stored in separate daily files, with scheduling and behavior verified.

Written by the indexing model from the issue text.