refactor: migrate Markdown to AsciiDoc (#54)

Automated migration of .md to .adoc per global rules, preserving wikis
and critical exceptions.

Author: hyperpolymath

ARCHITECTURE.adoc

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+== Architecture
+
+=== Overview
+
+This repository follows a modular, maintainable architecture designed
+for clarity, scalability, and long-term sustainability.
+
+=== Directory Structure
+
+....
+.
+├── src/           # Source code
+├── tests/        # Test suites
+├── docs/         # Documentation
+├── scripts/      # Utility scripts
+├── config/       # Configuration files
+├── LICENSE       # License file
+├── LICENSES/     # Full license texts
+└── README.adoc   # Project documentation
+....
+
+=== Design Principles
+
+* *Separation of Concerns*: Each module has a single responsibility
+* *Testability*: Code is written to be easily testable
+* *Documentation*: All public APIs are documented
+* *Configuration*: Environment-specific settings are externalized
+
+=== Dependencies
+
+* External dependencies are minimized and clearly declared
+* Version pinning is used for reproducibility
+
+=== Security Considerations
+
+* Sensitive data is never committed to the repository
+* Secrets are managed through environment variables or secure vaults
+* Regular dependency audits are performed
+
+=== Maintainability
+
+* Code follows consistent style guidelines
+* Pull requests require review and CI checks
+* Issues and discussions are tracked transparently
+
+'''''
+
+_Last updated: 2026-07-18_

ARCHITECTURE.md

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+== Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on https://keepachangelog.com/en/1.1.0/[Keep a
+Changelog], and this project adheres to
+https://semver.org/spec/v2.0.0.html[Semantic Versioning].
+
+=== [Unreleased]

CHANGELOG.adoc

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+== Contributor Covenant Code of Conduct
+
+=== Our Pledge
+
+We pledge to make participation a harassment-free experience for
+everyone.
+
+=== Our Standards
+
+*Positive behavior:* * Using welcoming language * Being respectful of
+differing viewpoints * Accepting constructive criticism * Focusing on
+what is best for the community
+
+*Unacceptable behavior:* * Harassment, trolling, or personal attacks *
+Publishing private information without permission
+
+=== Enforcement
+
+Report issues to the maintainers. All complaints will be reviewed.
+
+=== Attribution
+
+Adapted from https://www.contributor-covenant.org/[Contributor Covenant]
+v2.1.

CHANGELOG.md

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+== Contributing
+
+[arabic]
+. Fork the repository
+. Create a feature branch
+. Ensure SPDX headers on all files
+. Submit a pull request
+
+*Author:* Jonathan D.A. Jewell j.d.a.jewell@open.ac.uk

CODE_OF_CONDUCT.adoc

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+== Governance
+
+=== Overview
+
+This project is governed by the following principles and structures to
+ensure transparent, inclusive, and effective decision-making.
+
+=== Roles and Responsibilities
+
+==== Maintainers
+
+Maintainers are responsible for: - Reviewing and merging pull requests -
+Managing releases and versioning - Ensuring code quality and standards -
+Triaging issues and bug reports - Community engagement and support
+
+==== Contributors
+
+Contributors are expected to: - Follow the code of conduct - Submit
+well-documented pull requests - Write tests for new functionality -
+Maintain existing tests - Update documentation as needed
+
+=== Decision Making
+
+==== Minor Changes
+
+* Can be made by any maintainer
+* Include bug fixes, documentation updates, dependency updates
+
+==== Major Changes
+
+* Require discussion in issues or pull requests
+* Include new features, architectural changes, API changes
+* Need approval from at least 2 maintainers
+
+==== Breaking Changes
+
+* Require RFC (Request for Comments) process
+* Need approval from majority of maintainers
+* Must include migration guide
+
+=== Code of Conduct
+
+All participants are expected to follow our Code of Conduct. Violations
+can be reported to the maintainers.
+
+=== Communication
+
+* *Issues*: For bug reports and feature requests
+* *Discussions*: For questions and general discussion
+* *Pull Requests*: For code contributions
+
+=== Licensing
+
+All contributions are made under the terms of the repository’s LICENSE
+file. By submitting a pull request, you agree to license your
+contributions accordingly.
+
+'''''
+
+_Last updated: 2026-07-18_