chore: fix license headers to PMPL-1.0-or-later

- Update SPDX identifiers from AGPL to PMPL
- Ensure LICENSE file uses PMPL-1.0-or-later
- Maintain consistency with palimpsest-license repo

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: Your Name

.github/workflows/codeql.yml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: AGPL-3.0-or-later
+# SPDX-License-Identifier: PMPL-1.0-or-later
 name: CodeQL Security Analysis
 
 on:

.github/workflows/guix-nix-policy.yml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: AGPL-3.0-or-later
+# SPDX-License-Identifier: PMPL-1.0-or-later
 name: Guix/Nix Package Policy
 on: [push, pull_request]
 

.github/workflows/mirror.yml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: AGPL-3.0-or-later
+# SPDX-License-Identifier: PMPL-1.0-or-later
 # SPDX-FileCopyrightText: 2025 Jonathan D.A. Jewell
 name: Mirror to Git Forges
 

.github/workflows/npm-bun-blocker.yml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: AGPL-3.0-or-later
+# SPDX-License-Identifier: PMPL-1.0-or-later
 name: NPM/Bun Blocker
 on: [push, pull_request]
 

.github/workflows/quality.yml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: AGPL-3.0-or-later
+# SPDX-License-Identifier: PMPL-1.0-or-later
 name: Code Quality
 on: [push, pull_request]
 

.github/workflows/rsr-antipattern.yml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: AGPL-3.0-or-later
+# SPDX-License-Identifier: PMPL-1.0-or-later
 # RSR Anti-Pattern CI Check
 # SPDX-License-Identifier: AGPL-3.0-or-later
 #

.github/workflows/scorecard.yml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: AGPL-3.0-or-later
+# SPDX-License-Identifier: PMPL-1.0-or-later
 name: OSSF Scorecard
 on:
   push:

.github/workflows/secret-scanner.yml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: AGPL-3.0-or-later
+# SPDX-License-Identifier: PMPL-1.0-or-later
 # Prevention workflow - scans for hardcoded secrets before they reach main
 name: Secret Scanner
 

.github/workflows/security-policy.yml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: AGPL-3.0-or-later
+# SPDX-License-Identifier: PMPL-1.0-or-later
 name: Security Policy
 on: [push, pull_request]
 

.github/workflows/ts-blocker.yml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: AGPL-3.0-or-later
+# SPDX-License-Identifier: PMPL-1.0-or-later
 name: TypeScript/JavaScript Blocker
 on: [push, pull_request]