chore(licence): normalise to MPL-2.0 + CC-BY-SA-4.0 (canonical pair) (#284)

Estate licence normalisation. LICENSES/={MPL-2.0,CC-BY-SA-4.0}; root
LICENSE=verbatim MPL-2.0 (GitHub display); code->MPL-2.0,
docs(.md/.adoc)->CC-BY-SA-4.0; vendored untouched. Residual mentions
(mostly legitimate anti-AGPL rules): 110. Manual-review licence PR.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: hyperpolymath

.clusterfuzzlite/Dockerfile

@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: MPL-2.0
+FROM gcr.io/oss-fuzz-base/base-builder-rust@sha256:73c1d5648db54100639339d411a5d192cbc8bf413ee91e843a07cf6f0e319dc7
+
+COPY . $SRC/echidna
+WORKDIR $SRC/echidna
+
+COPY .clusterfuzzlite/build.sh $SRC/

.clusterfuzzlite/Dockerfile

@@ -3,7 +3,7 @@
 # ECHIDNA Pre-commit Hook
 # Enforces npm ban and runs checks
 #
-# SPDX-License-Identifier: MIT OR AGPL-3.0-or-later
+# SPDX-License-Identifier: MPL-2.0 OR AGPL-3.0-or-later
 
 set -euo pipefail
 

.githooks/pre-commit

@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 SPDX-FileCopyrightText: 2024-2025 ECHIDNA Project Contributors
 -->
 

.gitlab/issue_templates/bug.md

@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 SPDX-FileCopyrightText: 2024-2025 ECHIDNA Project Contributors
 -->
 

.gitlab/issue_templates/feature.md

@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 SPDX-FileCopyrightText: 2024-2025 ECHIDNA Project Contributors
 -->
 

.gitlab/merge_request_templates/default.md

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
 = Agent Instructions
 :toc: preamble

.machine_readable/agent_instructions/README.adoc

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 = K9 Contractiles
 :toc: left
 :icons: font

.machine_readable/svc/k9/README.adoc

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: MIT AND Palimpsest-0.6
+# SPDX-License-Identifier: MPL-2.0 AND Palimpsest-0.6
 # SPDX-FileCopyrightText: 2024-2025 ECHIDNA Project Contributors
 #
 # Trivy ignore file for ECHIDNA

.trivyignore

@@ -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>
 
 = ECHIDNA — Affirmation of Honest State