Apply estate standardization: governance docs, contractiles, CI/CD cleanup

Author: hyperpolymath

.machine_readable/6a2/META.a2ml

@@ -1,9 +1,9 @@
-# SPDX-License-Identifier: PMPL-1.0-or-later
+# SPDX-License-Identifier: MPL-2.0
 # META.a2ml — Project meta-information
 # Converted from META.scm on 2026-03-15
 
 [metadata]
 project = "robot-vacuum-cleaner"
 author = "Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>"
-license = "PMPL-1.0-or-later"
+license = "MPL-2.0"
 standard = "RSR 2026"