chore(licence): normalise to MPL-2.0 + CC-BY-SA-4.0 (canonical pair) (#20)

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): 21. Manual-review licence PR.

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

Author: hyperpolymath

.machine_readable/6scm/ECOSYSTEM.scm

@@ -1,4 +1,4 @@
-;; SPDX-License-Identifier: AGPL-3.0-or-later
+;; SPDX-License-Identifier: MPL-2.0
 ;; ECOSYSTEM.scm - Ecosystem relationships for stamp-protocol
 
 (ecosystem

.machine_readable/6scm/META.scm

@@ -1,4 +1,4 @@
-;; SPDX-License-Identifier: AGPL-3.0-or-later
+;; SPDX-License-Identifier: MPL-2.0
 ;; META.scm - Meta-level information for stamp-protocol
 
 (define meta

.machine_readable/6scm/STATE.scm

@@ -1,4 +1,4 @@
-;; SPDX-License-Identifier: AGPL-3.0-or-later
+;; SPDX-License-Identifier: MPL-2.0
 ;; STATE.scm - Project state tracking for stamp-protocol
 
 (define state

.machine_readable/ECOSYSTEM.scm

@@ -1,4 +1,4 @@
-;; SPDX-License-Identifier: AGPL-3.0-or-later
+;; SPDX-License-Identifier: MPL-2.0
 ;; ECOSYSTEM.scm - Ecosystem relationships for stamp-protocol
 
 (ecosystem

.machine_readable/META.scm

@@ -1,4 +1,4 @@
-;; SPDX-License-Identifier: AGPL-3.0-or-later
+;; SPDX-License-Identifier: MPL-2.0
 ;; META.scm - Meta-level information for stamp-protocol
 
 (define meta

.machine_readable/STATE.scm

@@ -1,4 +1,4 @@
-;; SPDX-License-Identifier: AGPL-3.0-or-later
+;; SPDX-License-Identifier: MPL-2.0
 ;; STATE.scm - Project state tracking for stamp-protocol
 
 (define state

.machine_readable/svc/k9/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

ARCHITECTURE-SETUP-COMPLETE.md

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: MPL-2.0
+# SPDX-License-Identifier: CC-BY-SA-4.0
 # AVOW Protocol - Architecture Setup Complete
 
 **Date:** 2026-02-04

CHANGELOG.md

@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell (hyperpolymath)
 -->
 

CLOUDFLARE-MANUAL-SETUP.md

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: MPL-2.0
+# SPDX-License-Identifier: CC-BY-SA-4.0
 # Cloudflare Manual Setup - Detailed Step-by-Step Instructions
 
 Complete visual guide for deploying AVOW Protocol to Cloudflare via dashboard.