docs: update rollback doc

[adela-bytebase]

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[vercel]

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Project	Deployment	Preview	Comments	Updated (UTC)
bytebase-com	Ready	Preview	Comment	Aug 19, 2025 4:16pm

[Copilot]

Pull Request Overview

This PR updates the rollback documentation to provide clearer explanations and improved formatting for the Prior Backup and rollback functionality in Bytebase. The documentation is enhanced with better structure, updated terminology, and more comprehensive setup instructions.

• Rewrote introductory sections with clearer explanations of Prior Backup and multi-task rollback capabilities
• Updated section headings and reorganized content flow for better readability
• Enhanced setup instructions with consistent formatting and clearer explanations for all database engines

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[github-actions]

📝 Broken Links Check Report

Note: Entries under /api-reference/ are likely false positives and can be ignored.

The following is the output from the broken links check:

found 16 broken links in 9 files

integrations/api/audit-log.mdx
 ⎿  /api-reference/auditlogservice/post-v1auditlogs:search

integrations/api/authentication.mdx
 ⎿  /api-reference/authservice/post-v1authlogin

integrations/api/data-classification.mdx
 ⎿  /api-reference/settingservice/patch-v1settings
 ⎿  /api-reference/databaseservice/patch-v1instances-databases

integrations/api/issue.mdx
 ⎿  /api-reference/issueservice/post-v1projects-issues

integrations/api/permission.mdx
 ⎿  /api-reference/workspaceservice/get-v1workspaces-:getIamPolicy
 ⎿  /api-reference/projectservice/get-v1projects-:getIamPolicy
 ⎿  /api-reference/roleservice/get-v1roles
 ⎿  /api-reference/userservice/get-v1users
 ⎿  /api-reference/groupservice/get-v1groups

integrations/api/plan.mdx
 ⎿  /api-reference/planservice/post-v1projects-plans
 ⎿  /api-reference/sheetservice/post-v1projects-sheets

integrations/api/release.mdx
 ⎿  /api-reference/releaseservice/post-v1projects-releases

integrations/api/rollout.mdx
 ⎿  /api-reference/rolloutservice/post-v1projects-rollouts

integrations/api/sql-review.mdx
 ⎿  /api-reference/releaseservice/post-v1projects-releases:check
 ⎿  /api-reference/sqlservice/post-v1sqlcheck

[tianzhou]

LGTM