feat(vue2): 优化组件安装逻辑，避免重复安装

[YufJi]

配合vue2源码依赖库拆分功能

Summary by CodeRabbit

发布说明

• Bug Fixes

  • 修复了组件在多次调用安装过程中可能重复注册的问题，已加入跨调用去重防护，避免重复安装与依赖处理。

• Performance

  • 优化了生产环境的代码分割与缓存策略，调整了代码块的归类规则与请求分配方式，提升资源加载与缓存效率。

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: 962d81e8-3d23-49e5-b258-c6a5a8521ec0

📥 Commits

Reviewing files that changed from the base of the PR and between be3ed7e and 13c190b.

📒 Files selected for processing (1)

• packages/vue2/src/utils/install.js

🚧 Files skipped from review as they are similar to previous changes (1)

• packages/vue2/src/utils/install.js

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Walkthrough

在 vue.config.js 生产环境配置中，重构了 splitChunks 的 cacheGroups，调整了 vue/lcap/vendors 三个分组的匹配规则与优先级。在 install.js 中，为 installComponents 函数添加了基于 WeakMap 和 WeakSet 的去重机制，防止对同一 Components 实例重复注册。

Changes

Vue2 构建分包配置与组件安装去重

Layer / File(s)	Summary
生产环境 splitChunks 缓存分组重构 packages/vue2/source/vue.config.js	移除 maxInitialRequests/maxAsyncRequests 顶层限制，将 cacheGroups 中 vue 组的正则扩展至 pinia/vue-router/vue-i18n，vendors 组新增 chunks: 'initial'，各组 priority 相应调整。
installComponents 去重机制 packages/vue2/src/utils/install.js	模块级新增 installed WeakMap（以 Vue 实例为 key，对应 WeakSet 为 value），installComponents 入口处检查 Components 引用，已安装则直接返回；安装完成后将 Components 加入对应 WeakSet，拦截后续重复调用。

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Possibly related PRs

• netease-lcap/lcap-template#368: 同样修改了 packages/vue2/source/vue.config.js 中 optimization.splitChunks 的 cacheGroups（vue/lcap/vendors 分块规则），与本 PR 的分包配置变更直接相关。

Poem

🐇 小兔子跳进代码丛，
分包配置重新梳，
vue 与 pinia 同一路，
重复安装不再有，
installed WeakSet 守门户，
构建更快兔欢呼！ 🎉

🚥 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
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	PR标题清晰准确地总结了主要改动：优化Vue2组件安装逻辑并避免重复安装，与raw_summary和pr_objectives中的改动完全对应。
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.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch task/3409715697838336

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@packages/vue2/src/utils/install.js`:
- Around line 24-27: The deduplication logic in the installComponents function
only tracks Components without considering the Vue instance, causing the same
Components to be incorrectly skipped if installed to different Vue constructors.
Change the installed tracking mechanism from a simple Set that stores only
Components to a structure that tracks the combination of both Vue and Components
(such as using a composite key or Map). Update the check at line 26 to verify if
the specific (Vue, Components) pair has been installed, and ensure the pair is
added to the tracking structure after registration. Apply the same fix to the
similar check mentioned at line 59 to maintain consistency across all
deduplication points in the function.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: 02b64977-20fb-4b20-8ccd-752f48be92ec

📥 Commits

Reviewing files that changed from the base of the PR and between 9875eda and be3ed7e.

📒 Files selected for processing (2)

• packages/vue2/source/vue.config.js
• packages/vue2/src/utils/install.js