refactor: migrate Markdown to AsciiDoc

ARCHITECTURE.adoc

@@ -0,0 +1,48 @@
+== 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_

CHANGELOG.adoc

@@ -0,0 +1,9 @@
+== 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]

CODE_OF_CONDUCT.adoc

@@ -0,0 +1,24 @@
+== 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.

CONTRIBUTING.adoc

@@ -0,0 +1,71 @@
+== Contributing
+
+Thank you for your interest in contributing! We follow a "`Dual-Track`"
+architecture where human-readable documentation lives in the root and
+machine-readable policies live in `+.machine_readable/+`.
+
+=== How to Contribute
+
+We welcome contributions in many forms:
+
+* *Code:* Improving the core stack or extensions
+* *Documentation:* Enhancing docs or AI manifests
+* *Testing:* Adding property-based tests or formal proofs
+* *Bug reports:* Filing clear, reproducible issues
+
+=== Getting Started
+
+[arabic]
+. *Read the AI Manifest:* Start with `+0-AI-MANIFEST.a2ml+` (if present)
+to understand the repository structure.
+. *Environment:* Use `+nix develop+` or `+direnv allow+` to set up your
+tools.
+. *Task Runner:* Use `+just+` to see available commands
+(`+just --list+`).
+
+=== Development Workflow
+
+==== Branch Naming
+
+....
+docs/short-description       # Documentation
+test/what-added              # Test additions
+feat/short-description       # New features
+fix/issue-number-description # Bug fixes
+refactor/what-changed        # Code improvements
+security/what-fixed          # Security fixes
+....
+
+==== Commit Messages
+
+We follow https://www.conventionalcommits.org/[Conventional Commits]:
+
+....
+<type>(<scope>): <description>
+
+[optional body]
+
+[optional footer]
+....
+
+Types: `+feat+`, `+fix+`, `+docs+`, `+test+`, `+refactor+`, `+ci+`,
+`+chore+`, `+security+`
+
+=== Reporting Bugs
+
+Before reporting: 1. Search existing issues 2. Check if it’s already
+fixed in `+main+`
+
+When reporting, include: - Clear, descriptive title - Environment
+details (OS, versions, toolchain) - Steps to reproduce - Expected vs
+actual behaviour
+
+=== Code of Conduct
+
+All contributors are expected to adhere to our
+link:CODE_OF_CONDUCT.md[Code of Conduct].
+
+=== License
+
+By contributing, you agree that your contributions will be licensed
+under the same license as the project (see LICENSE).

GOVERNANCE.adoc

@@ -0,0 +1,60 @@
+== 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_