docs: standardize attribution email to j.d.a.jewell@open.ac.uk (#226)

Standardizes attribution email (SPDX copyright headers) to the canonical
`j.d.a.jewell@open.ac.uk`, replacing the GitHub noreply variant.

https://claude.ai/code/session_017TXizM5c1Yd9HWf7Y15YH2

---
_Generated by [Claude
Code](https://claude.ai/code/session_017TXizM5c1Yd9HWf7Y15YH2)_

Co-authored-by: Claude <noreply@anthropic.com>

Author: hyperpolymath

.machine_readable/agent_instructions/README.adoc

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MPL-2.0
-// Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <6759885+hyperpolymath@users.noreply.github.com>
+// Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
 = Agent Instructions (echo-types)
 :toc: preamble
 

.machine_readable/agent_instructions/coverage.a2ml

@@ -1,5 +1,5 @@
 # SPDX-License-Identifier: MPL-2.0
-# Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <6759885+hyperpolymath@users.noreply.github.com>
+# Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
 #
 # coverage.a2ml — Session coverage tracking (echo-types)
 # Updated at the end of each AI agent session.

.machine_readable/agent_instructions/debt.a2ml

@@ -1,5 +1,5 @@
 # SPDX-License-Identifier: MPL-2.0
-# Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <6759885+hyperpolymath@users.noreply.github.com>
+# Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
 #
 # debt.a2ml — Meander debt list (echo-types)
 # Proof obligations and chores found but not discharged. Carried between

.machine_readable/agent_instructions/methodology.a2ml

@@ -1,5 +1,5 @@
 # SPDX-License-Identifier: MPL-2.0
-# Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <6759885+hyperpolymath@users.noreply.github.com>
+# Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
 #
 # methodology.a2ml — AI agent methodology configuration (echo-types)
 # Declares how agents should approach work in this Agda proof library.

.machine_readable/anchors/ANCHOR.a2ml

@@ -1,5 +1,5 @@
 # SPDX-License-Identifier: MPL-2.0
-# Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <6759885+hyperpolymath@users.noreply.github.com>
+# Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
 #
 # ANCHOR.a2ml - authoritative anchor for the echo-types repository.
 # Canonical identity + policy boundaries for downstream/satellite repos.

.machine_readable/svc/k9/methodology-guard.k9.ncl

@@ -1,5 +1,5 @@
 # SPDX-License-Identifier: MPL-2.0
-# Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <6759885+hyperpolymath@users.noreply.github.com>
+# Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
 #
 # K9 Validator: Methodology Guard (echo-types)
 # Checks that agent work respects the methodology constraints declared in