refactor: migrate Markdown to AsciiDoc

.claude/PROJECT.adoc

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+== BOJ Server - Claude Code Instructions
+
+This repository contains the BOJ (Battle of the Judges) server
+application.
+
+=== Project Structure
+
+....
+boj-server/
+├── .claude/         # AI assistant instructions
+├── .git/           # Version control
+├── .gitignore      # Git ignore rules
+├── .editorconfig   # Editor configuration
+└── ...             # Server files
+....
+
+=== Build Commands
+
+Refer to project-specific documentation.
+
+=== Coding Conventions
+
+* Follow hyperpolymath standards
+* All code must have SPDX license headers
+* Use approved languages only (see CLAUDE.md)
+* Document all non-obvious decisions
+
+=== Security
+
+* No hardcoded secrets
+* All secrets through environment variables or secret management
+* SHA-pinned dependencies where applicable
+* HTTPS only, no HTTP URLs
+* No MD5/SHA1 for security purposes

CODE_OF_CONDUCT.adoc

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+== Contributor Covenant Code of Conduct
+
+=== Our Pledge
+
+We as members, contributors, and leaders pledge to make participation in
+our community a harassment-free experience for everyone, regardless of
+age, body size, visible or invisible disability, ethnicity, sex
+characteristics, gender identity and expression, level of experience,
+education, socio-economic status, nationality, personal appearance,
+race, religion, or sexual identity and orientation.
+
+We pledge to act and interact in ways that contribute to an open,
+welcoming, diverse, inclusive, and healthy community.
+
+=== Our Standards
+
+Examples of behavior that contributes to a positive environment for our
+community include:
+
+* Demonstrating empathy and kindness toward other people
+* Being respectful of differing opinions, viewpoints, and experiences
+* Giving and gracefully accepting constructive feedback
+* Accepting responsibility and apologizing to those affected by our
+mistakes, and learning from the experience
+* Focusing on what is best not just for us as individuals, but for the
+overall community
+
+Examples of unacceptable behavior include:
+
+* Trolling, insulting or derogatory comments, and personal or political
+attacks
+* Public or private harassment of any kind
+* Publishing others’ private information, such as a physical or email
+address, without their explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+professional setting
+
+=== Enforcement Responsibilities
+
+Community leaders are responsible for clarifying and enforcing our
+standards of acceptable behavior and will take appropriate and fair
+corrective action in response to any behavior that they deem
+inappropriate, threatening, offensive, or harmful.
+
+Community leaders have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other
+contributions that are not aligned to this Code of Conduct, and will
+communicate reasons for moderation decisions when appropriate.
+
+=== Scope
+
+This Code of Conduct applies within all community spaces, and also
+applies when an individual is officially representing the community in
+public spaces. Examples of representing our community include using an
+official e-mail address, posting via an official social media account,
+or acting as an appointed representative at an online or offline event.
+
+=== Enforcement
+
+Instances of unacceptable behavior may be reported to the community
+leaders responsible for enforcement at j.d.a.jewell@open.ac.uk. All
+complaints will be reviewed and investigated promptly and fairly.
+
+All community leaders are obligated to respect the privacy and security
+of the reporter of any incident.
+
+=== Enforcement Guidelines
+
+Community leaders will follow these Community Impact Guidelines in
+determining the consequences for any action they deem in violation of
+this Code of Conduct:
+
+==== 1. Correction
+
+*Community Impact*: Use of inappropriate language or other behavior
+deemed unprofessional or unwelcome in the community.
+
+*Consequence*: A private, written warning from community leaders,
+providing clarity around the nature of the violation and an explanation
+of why the behavior was inappropriate. A public apology may be
+requested.
+
+==== 2. Warning
+
+*Community Impact*: A violation through a single incident or series of
+actions.
+
+*Consequence*: A warning with consequences for continued behavior. No
+interaction with the people involved, including unsolicited interaction
+with those enforcing the Code of Conduct, for a specified period of
+time. This includes avoiding interactions in community spaces as well as
+external channels like social media. Violating these terms may lead to a
+temporary or permanent ban.
+
+==== 3. Temporary Ban
+
+*Community Impact*: A serious violation of community standards,
+including sustained inappropriate behavior.
+
+*Consequence*: A temporary ban from any sort of interaction or public
+communication with the community for a specified period of time. No
+public or private interaction with the people involved, including
+unsolicited interaction with those enforcing the Code of Conduct, is
+allowed during this period. Violating these terms may lead to a
+permanent ban.
+
+==== 4. Permanent Ban
+
+*Community Impact*: Demonstrating a pattern of violation of community
+standards, including sustained inappropriate behavior, or aggression
+toward or disparagement of classes of individuals.
+
+*Consequence*: A permanent ban from any sort of public interaction
+within the community.
+
+=== Attribution
+
+This Code of Conduct is adapted from the
+https://www.contributor-covenant.org[Contributor Covenant], version 2.1,
+available at
+https://www.contributor-covenant.org/version/2/1/code_of_conduct.html.
+
+Community Impact Guidelines were inspired by
+https://github.com/mozilla/diversity[Mozilla’s code of conduct
+enforcement ladder].
+
+For answers to common questions about this code of conduct, see the FAQ
+at https://www.contributor-covenant.org/faq. Translations are available
+at https://www.contributor-covenant.org/translations.