feat: add ui-plugin-bundler-kit package

[ruibaby]

What type of PR is this?

/area console
/kind feature

What this PR does / why we need it:

添加 @halo-dev/ui-plugin-bundler-kit 包，用于向插件提供统一的 Vite 构建配置。

最终用法：

pnpm install @halo-dev/ui-plugin-bundler-kit -D

vite.config.ts

import { HaloUIPluginBundlerKit } from "@halo-dev/ui-plugin-bundler-kit";

export default defineConfig({
  plugins: [
    Vue(),
    Icons({ compiler: "vue3" }),
    HaloUIPluginBundlerKit(),
  ],
  resolve: {
    alias: {
      "@": fileURLToPath(new URL("./src", import.meta.url)),
    },
  },
});

Which issue(s) this PR fixes:

Fixes #4912

Special notes for your reviewer:

测试方式：

1. 在任意支持 UI 扩展的插件中添加此包：pnpm install path/to/halo/console/packages/ui-plugin-bundler-kit
2. 构建插件，检查 UI 相关的构建产物以及功能是否正常。

Does this PR introduce a user-facing change?

添加 `@halo-dev/ui-plugin-bundler-kit` 包，用于向插件提供统一的构建配置。

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (64fed0c) 56.81% compared to head (83feb00) 56.81%.

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #4916   +/-   ##
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  Coverage     56.81%   56.81%           
  Complexity     2971     2971           
=========================================
  Files           515      515           
  Lines         16913    16913           
  Branches       1273     1273           
=========================================
  Hits           9609     9609           
  Misses         6762     6762           
  Partials        542      542           

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[JohnNiang]

/lgtm

[f2c-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: JohnNiang

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• console/OWNERS [JohnNiang]

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