docs: restore v8.5 Top SQL multidimensional docs for v8.5.7

[yibin87]

What is changed, added or deleted? (Required)

• Restore the Top SQL multidimensional guidance in dashboard/top-sql.md for the release-8.5 branch after the feature is enabled in v8.5.7.
• Restore the resource-metering.enable-network-io-collection configuration reference in tikv-configuration-file.md.
• Update the restored version markers and anchor references to indicate availability starting from v8.5.7 in the v8.5 docs.

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

Tips for choosing the affected version(s):

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)
• v8.5 (TiDB 8.5 versions)
• v8.4 (TiDB 8.4 versions)
• v8.3 (TiDB 8.3 versions)
• v8.2 (TiDB 8.2 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)
• v5.3 (TiDB 5.3 versions)

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

• This PR is translated from: v8.5.7: restore v8.5 TopSQL multidimensional docs for v8.5.7 docs-cn#21717
• Other reference link(s):
  • docs: roll back v8.5.6 TopSQL multidimensional docs #22910
  • docs: roll back v8.5.6 Top SQL note and refresh v8.5 screenshots #22919

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]

Code Review

This pull request updates the documentation for the TiDB Dashboard Top SQL page and the TiKV configuration file to introduce the new TiKV Network I/O collection feature in v8.5.7, which enables tracking network traffic and logical I/O metrics. The reviewer's feedback focuses on improving clarity, readability, and style guide compliance. Key suggestions include consistently using "I/O" instead of "IO", applying sentence case to headings, preferring active voice and present tense, simplifying sentence structures, and correcting prepositions.

Important

The consumer version of Gemini Code Assist on GitHub is being sunset. Starting June 18, 2026, new organization installations will be blocked, and all code review activity will officially cease on July 17, 2026.
For more details on the timeline and next steps, please review the Help Documentation.

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by:
Once this PR has been reviewed and has the lgtm label, please ask for approval from qiancai. For more information see the Code Review Process.
Please ensure that each of them provides their approval before proceeding.

The full list of commands accepted by this bot can be found here.

Details

Needs approval from an approver in each of these files:

• OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2026-06-16 09:10:30.40705478 +0000 UTC m=+1469531.477372160: ☑️ agreed by qiancai.