When documenting the per-project layout in the previous commit,
I described Yavsc.Blogs as 'Sous-domaine front web specifique
au blog', which is wrong: Yavsc.Blogs contains only ApiController
classes, services and models — no Razor views. The plan is to
deploy it as a headless backend API on a dedicated subdomain in
production, while the blog front (Razor views) stays in
Yavsc.Org to share rendering and auth.
Correct the description, the ASCII diagram, the table row, and
the 'why' paragraph accordingly.