[RealmDB] Require Cata Warden identity schema

[MadMaxMangos]

Summary

• Require shared Realm DB 22/05/001.
• Match the database description exactly: Cata Warden identity.
• Update the existing database-version regression assertion to pin the new requirement.

Verification

• The committed revision constants match the merged Realm DB tuple and description.
• The branch differs from master only in the revision definition and its existing assertion.
• git diff --check passes.

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This change is 

[chatgpt-codex-connector]

Codex Review Summary

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Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-09-02T16:32:41.473716Z	b6c718f	PR opened

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Up to standards ✅

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🟢 Metrics 0 complexity · 0 duplication

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