Release 1.3.4 (2026-04-27)

Bug fixes

• declare GPL-3.0-only license metadata in pyproject.toml Adds [project].license and [project].license-files to pyproject.toml so pip-licenses reports standard-tooling correctly instead of UNKNOWN.

The repo has carried a GPL-3.0 LICENSE file all along; the metadata gap was invisible until ai-research-methodology declared standard-tooling as a dev dep (per the host-level-tool spec) and pip-licenses scanned it. Without this fix every Python consumer of standard-tooling needs a tactical --ignore-packages standard-tooling in audit.sh.