feat(select): add option removal handling for multiple selection

[QuentinHsu]

🤔 这个 PR 的性质是？

• 日常 bug 修复
• 新特性提交
• 文档改进
• 演示代码改进
• 组件样式/交互改进
• CI/CD 改进
• 重构
• 代码风格优化
• 测试用例
• 分支合并
• 其他

🔗 相关 Issue

ref #3522

💡 需求背景和解决方案

当多选时

1. 修复取消勾选时的 trigger 赋值。
2. 在 context.trigger === 'uncheck' 且 remove 事件回调函数存在时触发 remove 事件回调。

📝 更新日志

feat(select): 取消勾选面板中的已选项时触发 remove 事件回调

• 本条 PR 不需要纳入 Changelog

☑️ 请求合并前的自查清单

⚠️ 请自检并全部勾选全部选项。⚠️

• 文档已补充或无须补充
• 代码演示已提供或无须提供
• TypeScript 定义已补充或无须补充
• Changelog 已提供或无须提供

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commit: d8e142c

[github-actions]

[Copilot]

Pull Request Overview

This PR implements the removal handling for multiple selections by triggering a remove event callback when an option is unchecked. It updates the type definitions for removal contexts, adds removal callback handling in the Select component, and adjusts the trigger logic in PopupContent to distinguish between check and uncheck events.

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
packages/components/select/type.ts	Updated type definitions for removal contexts with expanded event types
packages/components/select/base/Select.tsx	Added handling for triggering the remove event on uncheck in multiple mode
packages/components/select/base/PopupContent.tsx	Modified the onChange trigger logic to toggle between 'check' and 'uncheck' based on selection

Comments suppressed due to low confidence (1)

packages/components/select/base/Select.tsx:260

• [nitpick] Consider renaming the variable 'value' in this removal block to avoid confusion with the prop 'value'. For example, use 'removedValue' to clearly indicate its purpose in the removal context.

const value = context?.value;