fix(webui): fix unexpected expansion of all rows in tool table

[letr007]

修复了工具管理面板中表格展开功能的bug：点击任意一行会导致所有行同时展开，而不是预期的单行展开。Fixes #4365。

Modifications / 改动点

修改了ToolTable.vue，将已废弃的item-key属性替换为正确的item-value属性
现在表格行将会单行展开而不是展开所有

• This is NOT a breaking change. / 这不是一个破坏性变更。

Screenshots or Test Results / 运行截图或测试结果

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Checklist / 检查清单

• 😊 如果 PR 中有新加入的功能，已经通过 Issue / 邮件等方式和作者讨论过。/ If there are new features added in the PR, I have discussed it with the authors through issues/emails, etc.
• 👀 我的更改经过了良好的测试，并已在上方提供了“验证步骤”和“运行截图”。/ My changes have been well-tested, and "Verification Steps" and "Screenshots" have been provided above.
• 🤓 我确保没有引入新依赖库，或者引入了新依赖库的同时将其添加到了 requirements.txt 和 pyproject.toml 文件相应位置。/ I have ensured that no new dependencies are introduced, OR if new dependencies are introduced, they have been added to the appropriate locations in requirements.txt and pyproject.toml.
• 😮 我的更改没有引入恶意代码。/ My changes do not introduce malicious code.

Summary by Sourcery

Bug Fixes:

• 修正工具管理数据表中的行识别问题，使展开某一行时不再导致所有行同时展开。

Original summary in English

Summary by Sourcery

Bug Fixes:

• Correct row identification in the tool management data table so expanding a row no longer expands all rows at once.

[sourcery-ai]

嘿，我已经审查了你的修改，一切看起来都很棒！

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Original comment in English

Hey - I've reviewed your changes and they look great!

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[Soulter]

学到了