docs: aligned organization guidance with monorepo

[alyldas]

Summary

• aligned shared contribution, support, and security guidance with the development monorepo
• preserved independent workspace responsibilities and explicit package boundaries
• removed automatic issue labels from the shared forms
• retained GitHub Packages and conservative SemVer guidance

Verification

• the community-file check passed locally
• stale multi-repository and automatic-label configuration was removed

[chatgpt-codex-connector]

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