Estate standardization 20260607 (#31)

<!-- SPDX-License-Identifier: MPL-2.0 -->
## Summary

<!-- Briefly describe what this PR does and why. Link to related issues
with "Closes #N". -->

## Changes

<!-- List the key changes introduced by this PR. -->

-

## RSR Quality Checklist

<!-- Check all that apply. PRs that fail required checks will not be
merged. -->

### Required

- [ ] Tests pass (`just test` or equivalent)
- [ ] Code is formatted (`just fmt` or equivalent)
- [ ] Linter is clean (no new warnings or errors)
- [ ] No banned language patterns (no TypeScript, no npm/bun, no
Go/Python)
- [ ] No `unsafe` blocks without `// SAFETY:` comments
- [ ] No banned functions (`believe_me`, `unsafeCoerce`, `Obj.magic`,
`Admitted`, `sorry`)
- [ ] SPDX license headers present on all new/modified source files
- [ ] No secrets, credentials, or `.env` files included

### As Applicable

- [ ] `.machine_readable/STATE.a2ml` updated (if project state changed)
- [ ] `.machine_readable/ECOSYSTEM.a2ml` updated (if integrations
changed)
- [ ] `.machine_readable/META.a2ml` updated (if architectural decisions
changed)
- [ ] Documentation updated for user-facing changes
- [ ] `TOPOLOGY.md` updated (if architecture changed)
- [ ] `CHANGELOG` or release notes updated
- [ ] New dependencies reviewed for license compatibility (MPL-2.0 /
MPL-2.0)
- [ ] ABI/FFI changes validated (`src/abi/` and `ffi/zig/` consistent)

## Testing

<!-- Describe how you tested these changes. -->

## Screenshots

<!-- If applicable, add screenshots or terminal output demonstrating the
change. -->

Author: hyperpolymath

.devcontainer/README.adoc

@@ -1,4 +1,5 @@
 // SPDX-License-Identifier: MPL-2.0
+// Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 = Dev Container Usage
 :author: Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 

.github/CODEOWNERS

@@ -0,0 +1,34 @@
+# SPDX-License-Identifier: MPL-2.0
+# CODEOWNERS - Define code review assignments for GitHub
+# See: https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/about-code-owners
+
+# Default: sole maintainer for all files
+* @hyperpolymath
+
+# Security-sensitive files require explicit ownership
+SECURITY.md @hyperpolymath
+.github/workflows/ @hyperpolymath
+.machine_readable/ @hyperpolymath
+contractiles/ @hyperpolymath
+
+# License files
+LICENSE @hyperpolymath
+LICENSES/ @hyperpolymath
+
+# Configuration
+.gitignore @hyperpolymath
+.github/ @hyperpolymath
+
+# Documentation
+README* @hyperpolymath
+CONTRIBUTING* @hyperpolymath
+CODE_OF_CONDUCT* @hyperpolymath
+GOVERNANCE* @hyperpolymath
+MAINTAINERS* @hyperpolymath
+CHANGELOG* @hyperpolymath
+ROADMAP* @hyperpolymath
+
+# Build and CI
+Justfile @hyperpolymath
+Makefile @hyperpolymath
+*.sh @hyperpolymath

.github/copilot-instructions.md

@@ -1,4 +1,7 @@
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!--
+SPDX-License-Identifier: MPL-2.0
+Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
+-->
 <!-- Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk> -->
 <!-- Authoritative source: docs/AI-CONVENTIONS.md -->
 

.github/pull_request_template.md

@@ -1,4 +1,7 @@
-<!-- SPDX-License-Identifier: MPL-2.0 -->
+<!--
+SPDX-License-Identifier: MPL-2.0
+Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
+-->
 ## Summary
 
 <!-- Briefly describe what this PR does and why. Link to related issues with "Closes #N". -->

.github/workflows/boj-build.yml

@@ -7,6 +7,7 @@ on:
 jobs:
   trigger-boj:
     runs-on: ubuntu-latest
+    timeout-minutes: 15
     steps:
       - name: Checkout
         uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7

.github/workflows/casket-pages.yml

@@ -18,6 +18,7 @@ concurrency:
 jobs:
   build:
     runs-on: ubuntu-latest
+    timeout-minutes: 15
     steps:
       - name: Checkout
         uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
@@ -109,6 +110,7 @@ jobs:
       name: github-pages
       url: ${{ steps.deployment.outputs.page_url }}
     runs-on: ubuntu-latest
+    timeout-minutes: 15
     needs: build
     steps:
       - name: Deploy to GitHub Pages

.github/workflows/ci.yml

@@ -17,6 +17,7 @@ jobs:
   test:
     name: Julia ${{ matrix.julia-version }} - ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
+    timeout-minutes: 15
     strategy:
       fail-fast: false
       matrix:

.github/workflows/codeql.yml

@@ -23,6 +23,7 @@ permissions:
 jobs:
   analyze:
     runs-on: ubuntu-latest
+    timeout-minutes: 15
     permissions:
       contents: read
       security-events: write

.github/workflows/dependabot-automerge.yml

@@ -50,6 +50,7 @@ jobs:
     # Only run for PRs actually authored by Dependabot.
     if: github.actor == 'dependabot[bot]' && github.event.pull_request.user.login == 'dependabot[bot]'
     runs-on: ubuntu-latest
+    timeout-minutes: 15
 
     steps:
       - name: Fetch Dependabot metadata

.github/workflows/dogfood-gate.yml

@@ -22,6 +22,7 @@ jobs:
   a2ml-validate:
     name: Validate A2ML manifests
     runs-on: ubuntu-latest
+    timeout-minutes: 15
 
     steps:
       - name: Checkout repository
@@ -66,6 +67,7 @@ jobs:
   k9-validate:
     name: Validate K9 contracts
     runs-on: ubuntu-latest
+    timeout-minutes: 15
 
     steps:
       - name: Checkout repository
@@ -115,6 +117,7 @@ jobs:
   empty-lint:
     name: Empty-linter (invisible characters)
     runs-on: ubuntu-latest
+    timeout-minutes: 15
 
     steps:
       - name: Checkout repository
@@ -179,6 +182,7 @@ jobs:
   groove-check:
     name: Groove manifest check
     runs-on: ubuntu-latest
+    timeout-minutes: 15
 
     steps:
       - name: Checkout repository
@@ -237,6 +241,7 @@ jobs:
   eclexiaiser-validate:
     name: Validate eclexiaiser manifest
     runs-on: ubuntu-latest
+    timeout-minutes: 15
 
     steps:
       - name: Checkout repository
@@ -300,6 +305,7 @@ print(f'Valid: {project[\"name\"]} ({len(functions)} function(s))')
   dogfood-summary:
     name: Dogfooding compliance summary
     runs-on: ubuntu-latest
+    timeout-minutes: 15
     needs: [a2ml-validate, k9-validate, empty-lint, groove-check, eclexiaiser-validate]
     if: always()