Re: [PATCH v4 0/5] maintenance: add an 'is-needed' subcommand

> Changes in v4:
> - In `update_segment_if_compaction_required()` change the argument name
>   from `use_heuristics` to `use_geometric` since we only have one
>   heuristic currently and this is much clearer to understand.
> - There were a lot of discussion on how to return a bool variable when
>   the function has a return type of int. We discussed both '!!required',
>   and 'required != true'. I'm going to punt this discussion keeping it
>   simple as 'return required' as in my first version, since even Junio
>   expressed his thoughts in favor of it.
> - Add a TODO for improvements to the flow when running `git maintenance
>   is-needed` without the `--auto` flag.
> - Link to v3: https://patch.msgid.link/20251106-562-add-sub-command-to-check-if-maintenance-is-needed-v3-0-d611a2a95cf5@gmail.com