licence: normalise estate to MPL-2.0 (code) + CC-BY-4.0 (docs); reconcile policy

Owner-directed licence normalisation (2026-06-04 session, fully-informed
entire-tree scope):

- Header-only SPDX rewrite across the tree (first identifier line, ≤L8 only;
  in-body examples / MPL Exhibit-A text / code-fence samples untouched):
  * code / config / scripts  -> MPL-2.0   (2934 files)
  * prose docs (*.adoc/*.md) -> CC-BY-4.0 (757 files)
  Estate-family ids converted: AGPL-3.0-or-later, PMPL-1.0-or-later,
  MPL-2.0-or-later and malformed variants.

- Protected (untouched): consent-aware-http/, all palimpsest* paths
  (the PMPL carve-out repos), LICENSES/ + licenses/ texts, MIT/foreign
  third-party headers, and PLMP-/PMLP- scaffold sentinels.

- Added LICENSES/CC-BY-4.0.txt (canonical SPDX text).

- Reconciled the policy so nothing contradicts:
  * LICENCE-POLICY.adoc — Rule 1 now code=MPL-2.0 / docs=CC-BY-4.0;
    Rule 2 reframed: PMPL is the narrow 3-repo carve-out, not the default.
  * .machine_readable/licensing-policy.toml — removed stale PMPL-default;
    encodes the MPL-2.0/CC-BY-4.0 model.
  * Fixed header-EMITTING generators so they stop re-introducing AGPL
    (build-registry.sh, setup.sh, *.rs/.py/.jl/.sh emitters) and the
    validate-spdx.sh hint; refreshed stale licence guidance in docs.

- Filled .machine_readable/MUST.contractile project-specific invariants
  from this session's musts (licensing + CI hardening + registry), with a
  cross-repo block tracing the hypatia detector musts to standards#370.

Validation: repo check-licence-consistency.sh passes; shellcheck/py_compile
clean on edited scripts; MUST.contractile parens balanced; TOML valid.

Author: claude

.editorconfig

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: AGPL-3.0-or-later
+# SPDX-License-Identifier: MPL-2.0
 # https://editorconfig.org
 
 root = true

.gitattributes

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: AGPL-3.0-or-later
+# SPDX-License-Identifier: MPL-2.0
 # RSR-compliant .gitattributes
 
 * text=auto eol=lf

.github/FUNDING.yml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: AGPL-3.0-or-later
+# SPDX-License-Identifier: MPL-2.0
 # Funding platforms for hyperpolymath projects
 # See: https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/displaying-a-sponsor-button-in-your-repository
 

.gitignore

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: AGPL-3.0-or-later
+# SPDX-License-Identifier: MPL-2.0
 # RSR-compliant .gitignore
 
 # OS & Editor

.machine_readable/6a2/AGENTIC.a2ml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: AGPL-3.0-or-later
+# SPDX-License-Identifier: MPL-2.0
 # Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
 #
 # AGENTIC.a2ml — AI agent constraints and capabilities

.machine_readable/6a2/ECOSYSTEM.a2ml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: AGPL-3.0-or-later
+# SPDX-License-Identifier: MPL-2.0
 # Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
 #
 # ECOSYSTEM.a2ml — Standards ecosystem position

.machine_readable/6a2/META.a2ml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: AGPL-3.0-or-later
+# SPDX-License-Identifier: MPL-2.0
 # Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
 #
 # META.a2ml — Standards meta-level information

.machine_readable/6a2/NEUROSYM.a2ml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: AGPL-3.0-or-later
+# SPDX-License-Identifier: MPL-2.0
 # Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
 #
 # NEUROSYM.a2ml — Neurosymbolic integration metadata

.machine_readable/6a2/PLAYBOOK.a2ml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: AGPL-3.0-or-later
+# SPDX-License-Identifier: MPL-2.0
 # Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
 #
 # PLAYBOOK.a2ml — Operational playbook

.machine_readable/6a2/STATE.a2ml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: AGPL-3.0-or-later
+# SPDX-License-Identifier: MPL-2.0
 # Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
 #
 # STATE.a2ml — Standards project state