🔖(major) release 3.0.0

Added:
- 📄(legal) Require contributors to sign a DCO

Changed:
- ♻️(frontend) Integrate UI kit
- 🏗️(y-provider) manage auth in y-provider app

Fixed:
- 🐛(backend) compute ancestor_links in get_abilities
  if needed
- 🔒️(back) restrict access to document accesses

src/backend/pyproject.toml

@@ -7,7 +7,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "impress"
-version = "2.6.0"
+version = "3.0.0"
 authors = [{ "name" = "DINUM", "email" = "dev@mail.numerique.gouv.fr" }]
 classifiers = [
     "Development Status :: 5 - Production/Stable",