chore: adjust code order

[li-jia-nan]

调整代码顺序，提高可读性

Summary by CodeRabbit

• 重构
  • 优化了 TreeNode 组件的状态管理和逻辑组织。
  • 简化了节点可选择性和可拖动性的状态处理。
  • 改进了数据加载同步机制，通过 useEffect 钩子确保更精确的生命周期管理。

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[coderabbitai]

变更概述

遍历

在 src/TreeNode.tsx 中，对 TreeNode 组件进行了几处重要修改。主要变更包括替换 memoizedIsSelectable 状态为 isSelectable，简化了节点可选择性的判断逻辑。syncLoadData 函数现在被放置在 React.useEffect 钩子中，确保在依赖项变化时正确同步加载数据。这些修改旨在优化组件的状态管理和代码组织。

变更

文件	变更摘要
src/TreeNode.tsx	- 替换 memoizedIsSelectable 为 isSelectable - 重新定位 isDraggable 状态 - 修改 nodeState 逻辑 - 在 useEffect 中调用 syncLoadData

可能相关的 PR

• refactor: rewrite TreeNode CC => FC #905：涉及 TreeNode 组件的重大重构，与本 PR 中对组件状态管理的修改直接相关。

建议的审阅者

• MadCcc
• afc163

诗歌

🐰 树节点轻舞，状态如流
代码重构，逻辑清幽
效率提升，兔子欢笑
简洁明了，编程之道
重生的组件，闪耀光芒 🌟

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.84%. Comparing base (9912c1f) to head (e2ea527).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #907   +/-   ##
=======================================
  Coverage   99.84%   99.84%           
=======================================
  Files          14       14           
  Lines        1277     1277           
  Branches      392      383    -9     
=======================================
  Hits         1275     1275           
  Misses          2        2           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[coderabbitai]

Actionable comments posted: 0

🧹 Nitpick comments (1)

src/TreeNode.tsx (1)

115-122: 确认 isDraggable 的判定逻辑
此处使用 React.useMemo 并在返回时用双重条件判断是否可拖拽，逻辑上无问题。但如果后续还需针对 draggable 做更多扩展，建议将逻辑抽离到辅助函数中，以便维护和测试。

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 9912c1f and e2ea527.

📒 Files selected for processing (1)

• src/TreeNode.tsx (4 hunks)

🔇 Additional comments (2)

src/TreeNode.tsx (2)

80-88: 建议：确保对 isSelectable 的依赖项保持同步
这段逻辑明显提升了可读性，React.useMemo 可以避免重复计算。但需要注意当 props.selectable 或 context.selectable 的值发生变化时，相关依赖需要与组件其他逻辑保持一致，避免出现选择状态与其他状态不同步的情况。

---

287-294: 优化：使用 nodeState 时确保与外部流程连贯
当前 nodeState 根据 memoizedIsLeaf 与 expanded 来判断返回 'open'、'close' 或 null，逻辑上保持了简洁易懂。如果将来需要处理更多状态（例如半展开、异步加载中等），可考虑在此基础上进行扩展或采用更灵活的状态枚举。