Provide architecture diagram

[TomasTomecek]

Inspired by Image Builder.

Let's provide a simplified architecture diagram that shows which git projects are used.

All our projects should be included:

• packit
• packit-service
• deployment (?)
• ogr
• specfile
• tokman
• *-fedmsg
• copr
• ?

We could also link to external dependencies such as celery, pygithub, python-gitlab, flask?

Image Builder links to commit hashes that are in production: do we want this as well?

TODO:

• Draw that diagram or ask ochosi for contact in UXD that draw theirs
• Discuss about the links if it's enough to just link to the projects

[TomasTomecek]

CKI has a very nice one: https://cki-project.org/docs/background/architecture/

[lbarcziova]

Deepwiki or other AI tools (Cursor?) could help here.