Add release metadata, about panel, and repo policies

CODE_OF_CONDUCT.md

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+# Code of Conduct
+
+## Our Standard
+
+This project expects contributors and maintainers to keep discussion technical,
+respectful, and free of harassment.
+
+In this repository:
+
+- be direct, but do not be abusive
+- criticize code and decisions, not people
+- avoid insults, intimidation, and personal attacks
+- assume good faith until there is a concrete reason not to
+- keep public threads useful for maintainers and contributors
+
+## Unacceptable Behavior
+
+Examples include:
+
+- harassment or discrimination
+- sexualized language or imagery
+- threats or intimidation
+- sustained personal attacks
+- doxxing or publishing private information without consent
+- deliberately disruptive or hostile communication
+
+## Maintainer Enforcement
+
+Project maintainers may remove, edit, or reject comments, issues, pull
+requests, or other contributions that violate this code of conduct.
+
+Depending on severity, maintainers may:
+
+- ask for a correction
+- lock or moderate a discussion
+- reject a contribution
+- temporarily or permanently block further participation
+
+## Reporting
+
+If someone is violating this code of conduct, contact the maintainer through
+the repository owner profile instead of escalating the situation publicly.