Restore feature states requires restricted permissions

[stefnestor]

👋 howdy, team!

This

• adds in the two most common errors encountered when snapshot restoring feature states / system indices wrong
• cross-links how to get the needed restricted permissions to restore system feature states (and removes outdated-since-v8.0 information which no longer works)
• adds in an example API outline of reading the feature state to its snapshot appearance to determining which to restore

Related changed pages

• Snapshot and restore > Feature states
• Restore a snapshot > Restore a feature state and Restore an entire cluster
• File-based access recovery

[stefnestor]

👋 may I have help on failing check

info ::e.d.i.atedBuildService:: Finished building and exporting exporters Html, LLMText, Configuration, DocumentationState, LinkMetadata, Redirects

	The following errors and warnings were found in the documentation

Error: 'reference/cloud/cloud-hosted/ec-api-console.md' is not a valid link in the 'cloud' cross link index: https://elastic-docs-link-index.s3.us-east-2.amazonaws.com/elastic/cloud/master/links.json
     ┌─[/github/workspace/deploy-manage/tools/snapshot-and-restore/restore-snapshot.md]
     │
 233 │ Restoring the `security` feature state overwrites system indices used for authentication. If you use {{ech}} or {{ece}}, ensure you have access to the [{{es}} API console](cloud://reference/cloud/cloud-hosted/ec-api-console.md) before restoring the `security` feature state. If you run {{es}} on your own hardware or in {{eck}}, [create a temporary user with elevated permissions to edit restricted indices in the file realm](/troubleshoot/elasticsearch/file-based-recovery.md) to ensure you’ll still be able to access your cluster.
     ·                                                                                                                                                       ──────────────────────────────────────────────────────                                                                                                                                                                                                                                                                                                                                        
     ·                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
     │
     └─



	1 Errors / 0 Warnings / 0 Hints

related documentation doesn't say how to cross-link cloud reference section 🙏

[github-actions]

🔍 Preview links for changed docs

• deploy-manage/tools/snapshot-and-restore.md
• deploy-manage/tools/snapshot-and-restore/restore-snapshot.md
• troubleshoot/elasticsearch/file-based-recovery.md

[yetanothertw]

Hi @stefnestor -- thank you so much for your contributions! 🌻

I've fixed the link that was causing the check to fail, and the docs build fine now. I've also left a few suggestions for style and clarity for your consideration.