Log sha

[Qubitol]

This fixes #1093

From now on, for each commit on master branch, a new file VERSION.txt is created within the repository (similar to the one created for each release), and containing the latest commit information, such as the SHA, committer, date, and message, in addition to the minimal MadGraph version, that is obtained from the __init__.py.

The code generator then will store a CUDACPP_VERSION.txt inside each generated process folder or gridpacks.
That file contains a banner reporting all the necessary tracking information and it is dumped at runtime as soon as CUDACPP is being used in the run.

TODO before merging:

• manually check it works for gridpacks

[Qubitol]

Simplified the print out.
It still doesn't work for gridpack, since the banner is not saved there.

[Qubitol]

Everything works.
Whenever event generation is run, either if it is inside or outside a gridpack, it would print a message like the following:

=================================================
You are using MadGraph5_aMC@NLO + CUDACPP plugin:
CUDACPP version = 042985d "Log CUDACPP version and MadGraph minimal version when using CUDACPP"
Minimal MadGraph5 version supported = 3.7.1
Current MadGraph5 version           = 3.7.1
=================================================

Additionally, a CI workflow creates a file VERSION.txt inside the plugin folder that looks like the following:

mg5_version_minimal          = 3.7.1

commit         042985d
Author:        Daniele Massaro
AuthorDate:    2026-07-15_19:12:07 UTC
Committer:     GitHub
CommitterDate: 2026-07-15_19:12:07 UTC
Message:       "Log CUDACPP version and MadGraph minimal version when using CUDACPP"

[oliviermattelaer]

good for me.

Thanks, Olivier

[stloufra]

Good for me, only one small remark as discussed in person. I would rather state compatible version then minimal compatible version as vacancy of upper bound signals unconditional forward compatibility IMO.

[roiser]

LGTM