licence(#7): normalise PMPL-1.0 -> PMPL-1.0-or-later (owner carve-out, SPDX-only) (#281)

Not a relicence; owner-sanctioned standards LICENCE-POLICY A8(1);
Refs LICENCE-DEBT-LEDGER-2026-05-18.

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: hyperpolymath

.github/workflows/governance.yml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: PMPL-1.0
+# SPDX-License-Identifier: PMPL-1.0-or-later
 # governance.yml — single wrapper calling the shared estate governance bundle
 # in hyperpolymath/standards. Replaces ~8 duplicated per-repo governance
 # workflows (verisimiser#59 estate rollout). Load-bearing build/security

.github/workflows/spark-theatre-gate.yml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: PMPL-1.0
+# SPDX-License-Identifier: PMPL-1.0-or-later
 # Estate SPARK Theatre Gate — thin caller of the reusable workflow in
 # hyperpolymath/standards (#135 / #141). Pinned by commit SHA per the
 # estate action-pinning policy. Regenerate the pin only when the reusable

LICENSING-GUIDE.md

@@ -168,7 +168,7 @@ graph TD
 
 **File Header:**
 ```rust
-// SPDX-License-Identifier: PMPL-1.0
+// SPDX-License-Identifier: PMPL-1.0-or-later
 // SPDX-License-Identifier: MPL-2.0
 // SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell
 //

stdlib/effects.affine

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: PMPL-1.0
+// SPDX-License-Identifier: PMPL-1.0-or-later
 // AffineScript Standard Library - Effect Declarations
 
 // Core IO effect - file and console operations