pgAdmin 4 (percona-pgadmin4) and its Python 3.12 / Node.js build and runtime
dependency stack, built for UBI 9 only. Independent of the PostgreSQL major
version, hence a version-less devel project rather than a ppg:devel: entry.
Design: docs/superpowers/specs/2026-08-26-pgadmin4-tooling-design.md