chore(license): normalize SPDX headers to PMPL-1.0-or-later

.github/workflows/cargo-audit.yml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: MPL-2.0
+# SPDX-License-Identifier: PMPL-1.0-or-later
 # Prevention workflow - audits Rust dependencies for vulnerabilities
 name: Cargo Audit
 

.github/workflows/hypatia-scan.yml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: MPL-2.0
+# SPDX-License-Identifier: PMPL-1.0-or-later
 # Thin wrapper around hyperpolymath/standards hypatia-scan-reusable.yml.
 # See standards#191 for the reusable's purpose and design.
 

.github/workflows/rust-ci.yml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: MPL-2.0
+# SPDX-License-Identifier: PMPL-1.0-or-later
 # Rust CI — thin wrapper calling the shared estate reusable in
 # hyperpolymath/standards. Configure once, propagate everywhere.
 # See: docs/CI-REUSABLE-WORKFLOWS.adoc in standards.

.github/workflows/workflow-linter.yml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: MPL-2.0
+# SPDX-License-Identifier: PMPL-1.0-or-later
 # Prevention workflow - validates all workflows have proper security config
 name: Workflow Security Linter
 

0-AI-MANIFEST.a2ml

@@ -43,7 +43,7 @@ Bot-specific instructions for:
 1. **No SCM duplication** - Root must NOT contain .machine_readable/6a2/STATE.a2ml, .machine_readable/6a2/META.a2ml, etc.
 2. **Single source of truth** - `.machine_readable/` is authoritative
 3. **No stale metadata** - If root SCMs exist, they are OUT OF DATE
-4. **License consistency** - All code PMPL-1.0-or-later unless platform requires MPL-2.0
+4. **License consistency** - All code PMPL-1.0-or-later
 5. **Author attribution** - Always "Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>"
 
 ## REPOSITORY STRUCTURE

CHANGELOG.md

@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: PMPL-1.0-or-later
 SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell (hyperpolymath)
 -->
 

CONTRIBUTING.adoc

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0-or-later
+// SPDX-License-Identifier: PMPL-1.0-or-later
 = Contributing Guide
 
 == Getting Started

Cargo.toml

@@ -14,16 +14,16 @@ members = [
 [workspace.package]
 version = "1.0.0"
 edition = "2021"
-license = "MPL-2.0"
+license = "PMPL-1.0-or-later"
 authors = ["Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>"]
 repository = "https://github.com/hyperpolymath/neurophone"
 
 [workspace.dependencies]
 # Core neural network
 ndarray = { version = "0.17", features = ["rayon", "serde"] }
 ndarray-rand = "0.16"
-rand = "0.10"
-rand_distr = "0.6"
+rand = "0.9"
+rand_distr = "0.5"
 rayon = "1.12"
 
 # Serialization