Add baseImage validation, status field, and documentation#396

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ivanauth wants to merge 3 commits intoauthzed:mainfrom

ivanauth:fix/baseimage-validation

Commits on Mar 5, 2026

Add baseImage validation, ResolvedBaseImage status field, and CEL validation
ivanauth
committed
Improve alternative-registry example clarity per review feedback
ivanauth
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fix test cases after rebase on secrets support
ivanauth
committed