refactor: use the shared non-nullable overlay guard

[QDyanbing]

说明

• 将 overlay 的手写非空判断替换为 isNonNullable，保持 aria-describedby 的现有生成语义。
• 补充零值、布尔、空字符串及 null/undefined 的无障碍属性测试。
• 将 @rc-component/util 最低版本提升到 ^1.13.0。

验证

• npm test -- --runInBand（37 项通过）
• npm run tsc
• 改动源码 ESLint 检查通过。

关联 ant-design/ant-design#59193

Summary by CodeRabbit

• Bug 修复
  • Tooltip 在弹出层内容为 0、false 或空字符串时，仍会正确设置按钮的 aria-describedby；内容为 null 或 undefined 时则不设置。
• 依赖更新
  • 更新了 @rc-component/util 的依赖版本。

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Advanced

Run ID: 922a1e5c-ef59-40a0-a856-69af2045d511

📥 Commits

Reviewing files that changed from the base of the PR and between 2d2edbb and 114c968.

📒 Files selected for processing (3)

• package.json
• src/Tooltip.tsx
• tests/renderability.test.tsx

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Walkthrough

Tooltip 将 @rc-component/util 的依赖范围更新为 ^1.13.0，并使用 isNonNullable 判断是否为按钮设置 aria-describedby。新增测试覆盖多种 overlay 值。

Changes

Tooltip overlay 处理

Layer / File(s)	Summary
aria-describedby 判断与验证 package.json, src/Tooltip.tsx, tests/renderability.test.tsx	依赖范围更新为 ^1.13.0。Tooltip 在弹出层打开且 overlay 非空时，将 mergedId 加入 aria-describedby。测试覆盖 0、false、空字符串、null 和 undefined。

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~8 minutes

Change: Refactor

Suggested reviewers: zombiej

Merge Risk: ⚪ Minimal · up to 114c9

The refactor preserves when Tooltip adds aria-describedby, and the new cases cover nullish and falsy overlays. No merge-blocking issue is established; proceed with normal checks.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	标题“refactor: use the shared non-nullable overlay guard”准确概括了主要变更：使用共享的 isNonNullable 替换 overlay 的手写非空判断。标题简洁、明确，并与测试和依赖更新相关。
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 2…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches 💡 1

🛠️ Fix failing CI checks 💡

• Commit to this branch
• Create a new PR

🧪 Generate unit tests (beta)

• Create a new PR

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_{兔子捧着小胡萝卜，
看见提示添上了标记。
零和 false 也留在名单，
空字符串轻轻点头，
null 与 undefined 安静退场。}

_{Comment @coderabbitai help to get the list of available commands.}

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (2d2edbb) to head (114c968).

Additional details and impacted files

@@            Coverage Diff            @@
##            master      #546   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            3         3           
  Lines           38        39    +1     
  Branches        15        15           
=========================================
+ Hits            38        39    +1     

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