[User Story] Document and test restore procedure

[noahwhite]

Story Summary

As a platform engineer, I want documented and tested restore procedures, so that I can confidently recover from data loss.

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✅ Acceptance Criteria

• CLAUDE.md updated with backup/restore documentation
• Full restore procedure documented (new instance from backup)
• Partial restore procedure documented (restore specific data)
• Verification steps documented
• Restore procedure tested on dev environment
• MySQL data restored and verified
• Ghost content (images) restored and verified

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📝 Additional Context

• Docs: Add to CLAUDE.md "Backup and Restore" section
• Test: Create new instance, restore from R2, verify Ghost works
• Include rclone commands for restore

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📦 Definition of Ready

• Acceptance criteria defined
• Backup implementation complete (Story 2)
• Story is estimated (2 points)
• Team has necessary skills and access
• Priority is clear
• Business value understood

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✅ Definition of Done

• All acceptance criteria met
• Documentation reviewed
• Restore tested successfully
• Screenshots or logs of successful restore

[linear]

GHO-64