feat(codereadiness): prepare Code Readiness hook specification

[marcin11858]

This PR

Describes specification of the Code Readiness Hook. The Hook will prevent enabling a feature flag in running binaries that are not ready

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 8ddd04df-ce8f-4dcf-b14c-73cb6767bd63

📥 Commits

Reviewing files that changed from the base of the PR and between a235a3e and 3ee0571.

📒 Files selected for processing (1)

• specification/appendix-a-included-utilities.md

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📝 Walkthrough

Walkthrough

This change adds a new "Code Readiness Hook" specification section to Appendix A, defining requirements for a hook that blocks feature flag activation on binaries below a minimum code version specified in flag metadata, including lifecycle behavior, initialization, and configurable comparison strategy.

Changes

Documentation Addition

Layer / File(s)	Summary
Code Readiness Hook requirements section specification/appendix-a-included-utilities.md	Adds a new section specifying hook behavior for comparing running binary version to a minimum version metadata field, including after-stage error throwing, initialization requirements, configurable metadata key (default minCodeVersion), and default SemVer 2.0.0 comparison strategy.

Estimated code review effort: 1 (Trivial) | ~5 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly summarizes the main change: adding the Code Readiness hook specification.
Description check	✅ Passed	The description is directly related to the PR and matches the Code Readiness Hook specification changes.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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[erka]

Version Compatibility Hook may be another name for it.