release-8.1: update Serverless anchor links to Starter

[lilin90]

What is changed, added or deleted? (Required)

Updates Serverless anchor links to Starter links

Which TiDB version(s) do your changes apply to? (Required)

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By default, CHOOSE MASTER ONLY so your changes will be applied to the next TiDB major or minor releases. If your PR involves a product feature behavior change or a compatibility change, CHOOSE THE AFFECTED RELEASE BRANCH(ES) AND MASTER.

For details, see tips for choosing the affected versions.

• master (the latest development version)
• v9.0 (TiDB 9.0 versions)
• v8.5 (TiDB 8.5 versions)
• v8.1 (TiDB 8.1 versions)
• v7.5 (TiDB 7.5 versions)
• v7.1 (TiDB 7.1 versions)
• v6.5 (TiDB 6.5 versions)
• v6.1 (TiDB 6.1 versions)
• v5.4 (TiDB 5.4 versions)

What is the related PR or file link(s)?

• This PR is translated from:
• Other reference link(s): release-8.5: remove Serverless from Starter name descriptions #21940

Do your changes match any of the following descriptions?

• Delete files
• Change aliases
• Need modification after applied to another branch
• Might cause conflicts after applied to another branch

[gemini-code-assist]

Summary of Changes

Hello @lilin90, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request implements a crucial documentation update for the release-8.1 branch, standardizing the naming convention for TiDB Cloud cluster tiers. It systematically replaces all internal anchor links that previously referenced the "Serverless" tier with the new "Starter" designation. This change ensures that users navigating the documentation encounter accurate and up-to-date terminology, improving clarity and user experience.

Highlights

• Documentation Terminology Update: All instances of 'Serverless' anchor links within the documentation have been updated to 'Starter' to reflect current product naming conventions.
• Consistency Across Documents: The change ensures consistent terminology across a wide range of documentation files, including development guides, SQL statements, and system variables, for the v8.1 release.

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[gemini-code-assist]

Code Review

This pull request updates numerous documentation files to replace anchor links pointing to ...#tidb-cloud-serverless with ...#starter. This change aligns with the recent renaming of the "Serverless" tier to "Starter", ensuring terminology consistency across the documentation. One file also removes the (formerly Serverless) parenthetical note, which is also in line with this effort. The changes are correct and improve the clarity and accuracy of the documentation. I have no further comments.

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2025-10-21 08:39:55.910542369 +0000 UTC m=+774701.987794929: ☑️ agreed by qiancai.

[lilin90]

/approve

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: lilin90

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[ti-chi-bot]

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