License GitHub community-health workflows as MPL-2.0 (fix reuse lint)

[hyperpolymath]

What

Licenses the three standards-adopted community-health workflow stubs — hypatia-scan.yml, governance.yml, scorecard.yml — as MPL-2.0 (with the standard two-line SPDX header), removing the bare PMPL-1.0-or-later identifier that was failing reuse lint.

Why

reuse lint was failing, and the first instinct (add a LICENSES/PMPL-1.0-or-later.txt) doesn't work — it's a catch-22:

• File absent: Missing licenses: PMPL-1.0-or-later
• File present: Bad licenses … not valid SPDX … do not start with 'LicenseRef-'

PMPL (Palimpsest Meta-Public License) is a custom license, so REUSE only accepts it via a LicenseRef- prefix — a bare PMPL-1.0-or-later can't pass either way. Meanwhile REUSE.toml already aggregates .github/** and **/*.yml as MPL-2.0, so the inline PMPL header just layered an invalid second license on top.

How

Per maintainer direction: these are GitHub community-health files, so license them as MPL-2.0 (the estate's code/config license), keeping MPL-2.0 + CC-BY-SA-4.0 as the repo's two licenses. PMPL is no longer used, so no PMPL text file is needed.

-# SPDX-License-Identifier: PMPL-1.0-or-later
+# SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
+# SPDX-License-Identifier: MPL-2.0

Validation — ran reuse lint locally ✅

* Bad licenses: 0
* Missing licenses: 0
* Unused licenses: 0
* Used licenses: CC-BY-SA-4.0, MPL-2.0
* Files with copyright information: 775 / 775
* Files with license information: 775 / 775
Congratulations! Your project is compliant with version 3.3 of the REUSE Specification :-)

Note

The other two failing checks on this PR — Hypatia scan and governance staleness — are unrelated: they come from stale hyperpolymath/standards reusable-workflow pins (the actions/cache@d4373f26 pin was fixed to 1bd1e32a # v4.2.0 on standards@main) and need an estate-standardization re-sync in standards, which is outside these repos.

🤖 Generated with Claude Code

https://claude.ai/code/session_017nyxs8RgqZa72PzrTu3L75