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

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: hyperpolymath

.gitattributes

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: AGPL-3.0-or-later
+# SPDX-License-Identifier: PMPL-1.0-or-later
 # RSR-compliant .gitattributes
 
 * text=auto eol=lf

.gitignore

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: AGPL-3.0-or-later
+# SPDX-License-Identifier: PMPL-1.0-or-later
 # RSR-compliant .gitignore
 
 # OS & Editor

hooks/validate-codeql.sh

@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-# SPDX-License-Identifier: AGPL-3.0-or-later
+# SPDX-License-Identifier: PMPL-1.0-or-later
 # Pre-commit hook: Validate CodeQL language matrix matches repo
 set -euo pipefail
 

hooks/validate-permissions.sh

@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-# SPDX-License-Identifier: AGPL-3.0-or-later
+# SPDX-License-Identifier: PMPL-1.0-or-later
 # Pre-commit hook: Validate workflow permissions declarations
 set -euo pipefail
 ERRORS=0

hooks/validate-sha-pins.sh

@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-# SPDX-License-Identifier: AGPL-3.0-or-later
+# SPDX-License-Identifier: PMPL-1.0-or-later
 # Pre-commit hook: Validate GitHub Actions are SHA-pinned
 
 set -euo pipefail

hooks/validate-spdx.sh

@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-# SPDX-License-Identifier: AGPL-3.0-or-later
+# SPDX-License-Identifier: PMPL-1.0-or-later
 # Pre-commit hook: Validate SPDX headers in workflow files
 
 set -euo pipefail
@@ -13,7 +13,7 @@ for workflow in .github/workflows/*.yml .github/workflows/*.yaml; do
     first_line=$(head -n1 "$workflow")
     if ! echo "$first_line" | grep -qE "$SPDX_PATTERN"; then
         echo "ERROR: Missing SPDX header in $workflow"
-        echo "  First line should be: # SPDX-License-Identifier: AGPL-3.0-or-later"
+        echo "  First line should be: # SPDX-License-Identifier: PMPL-1.0-or-later"
         ERRORS=$((ERRORS + 1))
     fi
 done