docs: update usage examples in TDengine TSDB MCP reference manual

[huskar-t]

Description

docs: update usage examples in TDengine TSDB MCP reference manual

Issue(s)

Checklist

Please check the items in the checklist if applicable.

• Is the user manual updated?
• Are the test cases passed and automated?
• Is there no significant decrease in test coverage?

[gemini-code-assist]

Summary of Changes

Hello @huskar-t, 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 enhances the clarity and consistency of the TDengine TSDB MCP reference manual by introducing additional spacing around embedded images within the usage examples section. It also includes a correction for an image filename, ensuring that the documentation accurately reflects the intended visuals and improves overall presentation.

Highlights

• Documentation Formatting: Improved readability of usage examples in both English and Chinese versions of the TDengine TSDB MCP reference manual by adding blank lines before image embeds for better visual separation.
• Image Filename Correction: Corrected an image filename from "mcp-show.webp" to "mcp-show-databases.webp" for the 'Get database list' example in both documentation files.

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[Copilot]

Pull request overview

Updates the TDengine TSDB MCP reference manual usage examples by refreshing the referenced screenshots and aligning the example sections in both Chinese and English docs.

Changes:

• Replace the generic “show” screenshot with separate database and stable list screenshots.
• Add/refresh MCP usage example screenshots (dnode list, database list, stable list; plus updated info screenshot in EN).
• Adjust markdown formatting in the usage examples to consistently separate list items and embedded images.

Reviewed changes

Copilot reviewed 2 out of 14 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
docs/zh/14-reference/02-tools/08-mcp-tdengine-tsdb.md	Updates usage example screenshot references and spacing in the Chinese manual.
docs/zh/14-reference/02-tools/assets/mcp-show.webp	Removes the obsolete “show” screenshot asset no longer referenced.
docs/zh/14-reference/02-tools/assets/mcp-list-dnodes.webp	Adds screenshot for “list dnodes” example (ZH).
docs/zh/14-reference/02-tools/assets/mcp-show-databases.webp	Adds screenshot for “show databases” example (ZH).
docs/zh/14-reference/02-tools/assets/mcp-show-stables.webp	Adds screenshot for “show stables” example (ZH).
docs/en/14-reference/02-tools/08-mcp-tdengine-tsdb.md	Updates usage example screenshot references and spacing in the English manual.
docs/en/14-reference/02-tools/assets/mcp-show.webp	Removes the obsolete “show” screenshot asset no longer referenced.
docs/en/14-reference/02-tools/assets/mcp-info.webp	Adds/updates screenshot for “connection info” example (EN).
docs/en/14-reference/02-tools/assets/mcp-list-dnodes.webp	Adds screenshot for “list dnodes” example (EN).
docs/en/14-reference/02-tools/assets/mcp-show-databases.webp	Adds screenshot for “show databases” example (EN).
docs/en/14-reference/02-tools/assets/mcp-show-stables.webp	Adds screenshot for “show stables” example (EN).

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[gemini-code-assist]

Code Review

This pull request updates usage examples in the TDengine TSDB MCP reference manual for both English and Chinese versions. The changes primarily involve adding vertical spacing around images within numbered lists for better readability and updating one image filename. My review confirms the changes are beneficial, but I've identified some minor formatting inconsistencies in the new layout. I've provided suggestions to ensure uniform spacing across all list items, which will improve visual consistency and prevent potential rendering issues in the markdown.