fix: preserve zero-valued suffix content

[QDyanbing]

说明

• 补齐 Input 的 suffix 渲染与计数后缀样式判断，suffix={0} 不再被忽略。
• 使用共享 isReactRenderable，保留既有空后缀行为，并补充回归测试。

验证

• npm test -- --runInBand（132 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 Fixes

  • 输入框后缀现在能正确显示数字 0；启用计数显示时，也会应用相应的计数样式。
  • null、undefined、false 和空字符串仍不会显示后缀区域。

• Tests

  • 补充了后缀渲染相关测试。

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[coderabbitai]

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Advanced

Run ID: 11a9ad15-969c-4720-9f9d-b81a726a054d

📥 Commits

Reviewing files that changed from the base of the PR and between 507a041 and 7a70001.

📒 Files selected for processing (2)

• src/Input.tsx
• tests/renderability.test.tsx

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Walkthrough

Input 现在使用 isReactRenderable 判断 suffix 是否可渲染，并据此生成后缀区域和设置计数样式标记。新增测试覆盖可渲染的 0，以及不会渲染后缀元素的值。

Changes

后缀渲染

Layer / File(s)	Summary
后缀渲染判断与验证 src/Input.tsx, tests/renderability.test.tsx	Input 使用 isReactRenderable 判断是否生成后缀区域，并据此设置 show-count-has-suffix 类。测试覆盖 suffix 为 0、null、undefined、false 和空字符串时的渲染结果。

Priority: ⬇️ Low

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

Change: Bug fix

Merge Risk: ⚪ Minimal · up to 7a700

Suffix zero is rendered while the listed non-renderable values remain omitted. No concrete merge-blocking issue was identified; the change appears ready subject to 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“fix: preserve zero-valued suffix content”准确概括了主要变更：修复 suffix={0} 内容被忽略的问题。标题简洁、明确，并与代码和测试变更一致。
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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_{小兔看见零也能现身，
蹦过后缀，数值亮晶晶。
null 和空白安静退场，
测试逐个确认渲染模样。
新逻辑落定，萝卜香！}

_{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 98.36%. Comparing base (507a041) to head (7a70001).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #205   +/-   ##
=======================================
  Coverage   98.36%   98.36%           
=======================================
  Files          11       11           
  Lines         428      428           
  Branches      134      134           
=======================================
  Hits          421      421           
  Misses          7        7           

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