chore(licence): normalise to MPL-2.0 + CC-BY-SA-4.0 (canonical pair) (#10)

hyperpolymath · claude · web-flow · commit e884b2354fda · 2026-06-24T16:43:49.000+01:00
Estate licence normalisation. LICENSES/={MPL-2.0,CC-BY-SA-4.0}; root
LICENSE=verbatim MPL-2.0 (GitHub display); code-&gt;MPL-2.0,
docs(.md/.adoc)-&gt;CC-BY-SA-4.0; vendored untouched. Residual mentions
(mostly legitimate anti-AGPL rules): 8. Manual-review licence PR.

Co-authored-by: Claude Opus 4.8 (1M context) &lt;noreply@anthropic.com&gt;
diff --git a/.github/workflows/governance.yml b/.github/workflows/governance.yml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: PMPL-1.0-or-later
+# SPDX-License-Identifier: MPL-2.0
 name: Governance
 
 on:
diff --git a/GOVERNANCE.adoc b/GOVERNANCE.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 = Governance Model
 :toc: preamble
diff --git a/LICENSE b/LICENSE
@@ -1,5 +1,3 @@
-SPDX-License-Identifier: MPL-2.0
-
 Mozilla Public License Version 2.0
 ==================================
 
diff --git a/LICENSES/CC-BY-SA-4.0.txt b/LICENSES/CC-BY-SA-4.0.txt
diff --git a/LICENSES/MPL-2.0.txt b/LICENSES/MPL-2.0.txt
diff --git a/MAINTAINERS.adoc b/MAINTAINERS.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 = Maintainers
 :toc: preamble
diff --git a/README.md b/README.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 <!-- (MPL-2.0 is the automatic legal fallback until PMPL is formally recognised.) -->
diff --git a/wiki/Adding-A-New-Shadow.md b/wiki/Adding-A-New-Shadow.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # Adding a new shadow — submission guide
diff --git a/wiki/Exercises.md b/wiki/Exercises.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # Exercises — hands-on EchoTypes.jl ↔ echo-types
diff --git a/wiki/Home.md b/wiki/Home.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # EchoTypes.jl — wiki
diff --git a/wiki/Honest-Bound-Discipline.md b/wiki/Honest-Bound-Discipline.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # Honest-bound discipline
diff --git a/wiki/README.md b/wiki/README.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # wiki/ — canonical source for the EchoTypes.jl wiki

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-# SPDX-License-Identifier: PMPL-1.0-or-later`
	`1`	`+# SPDX-License-Identifier: MPL-2.0`
`2`	`2`	`name: Governance`
`3`	`3`
`4`	`4`	`on:`
Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-// SPDX-License-Identifier: MPL-2.0`
	`1`	`+// SPDX-License-Identifier: CC-BY-SA-4.0`
`2`	`2`	`// SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>`
`3`	`3`	`= Governance Model`
`4`	`4`	`:toc: preamble`
Original file line number	Diff line number	Diff line change
`@@ -1,5 +1,3 @@`
`1`		`-SPDX-License-Identifier: MPL-2.0`
`2`		`-`
`3`	`1`	`Mozilla Public License Version 2.0`
`4`	`2`	`==================================`
`5`	`3`