fix: debounce users page search input

[feitianbubu]

⚠️ 提交说明 / PR Notice

用户页搜索框每输入一个字符就发一次 /api/user/search，每页 100 条时明显卡顿。
参考渠道页的防抖逻辑, 这里给用户表同样加上 searchDebounceMs: 500

🚀 变更类型 / Type of change

• 🐛 Bug 修复 (Bug fix) - 请关联对应 Issue，避免将设计取舍、理解偏差或预期不一致直接归类为 bug
• ✨ 新功能 (New feature) - 重大特性建议先通过 Issue 沟通
• ⚡ 性能优化 / 重构 (Refactor)
• 📝 文档更新 (Documentation)

🔗 关联任务 / Related Issue

• Closes 新版本UI用户页面查询具体用户时很卡（尤其是每页100条时），每输入一个字符就会触发一次查询 #6399

✅ 提交前检查项 / Checklist

• 人工确认: 我已亲自整理并撰写此描述，没有直接粘贴未经处理的 AI 输出。
• 非重复提交: 我已搜索现有的 Issues 与 PRs，确认不是重复提交。
• Bug fix 说明: 若此 PR 标记为 Bug fix，我已提交或关联对应 Issue，且不会将设计取舍、预期不一致或理解偏差直接归类为 bug。
• 变更理解: 我已理解这些更改的工作原理及可能影响。
• 范围聚焦: 本 PR 未包含任何与当前任务无关的代码改动。
• 本地验证: 已在本地运行并通过测试或手动验证，维护者可以据此复核结果。
• 安全合规: 代码中无敏感凭据，且符合项目代码规范。

📸 运行证明 / Proof of Work

本地实例浏览器手测：用户页连续输入 8888 ，全程只发出一次搜索请求（修复前每个字符一次）：

[GET] /api/user/search?keyword=rootuser&group=&p=1&page_size=20 => [200] OK

Summary by CodeRabbit

• User Experience
  • Improved the users table search experience by applying a brief delay before search results update, reducing unnecessary refreshes while typing.

[coderabbitai]

Walkthrough

The users table now configures its global search input to wait 500 milliseconds after typing before triggering a search.

Changes

User search behavior

Layer / File(s)	Summary
Configure search debounce web/src/features/users/components/users-table.tsx	Passes searchDebounceMs: 500 through DataTablePage toolbar properties.

Estimated code review effort: 1 (Trivial) | ~3 minutes

Suggested reviewers: calcium-ion

Poem

I’m a rabbit who types with care,
Five hundred milliseconds in the air.
No frantic hops from key to key,
The search now waits patiently.
thump thump—a smoother query!

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Linked Issues check	✅ Passed	The change satisfies #6399 by delaying users page search requests with a 500 ms debounce.
Out of Scope Changes check	✅ Passed	The diff only adds the debounce setting and stays within the reported search-performance fix.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly matches the main change: adding debounce to the users page search input.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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