feat(client): migration old package to rspack (#15068)

#### PR Dependency Tree


* **PR #15068** 👈

This tree was auto-generated by
[Charcoal](https://github.com/danerwilliams/charcoal)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **Chores**
* Upgraded Vitest across packages to 4.1.8 and bumped Tailwind PostCSS
to 4.3.0
* CLI/tooling updated to support the media-capture-playground package
and adjust build/dev server behavior

* **Bug Fixes**
  * Improved workspace deletion reliability in the Electron app

* **Refactor**
* Simplified media capture playground build setup (build/config
adjustments)

* **Tests**
* Made tests more robust by preserving/restoring environment state
during runs
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

tools/cli/src/rspack/index.ts

@@ -77,12 +77,20 @@ export function createHTMLTargetConfig(
   deps?: string[]
 ): RspackConfiguration {
   entry = typeof entry === 'string' ? { index: entry } : entry;
+  const tailwindConfigPath = pkg.join('tailwind.config.js');
+  const hasTailwind =
+    tailwindConfigPath.exists() ||
+    pkg.name === '@affine/media-capture-playground';
+  const tailwindPlugin = tailwindConfigPath.exists()
+    ? ['@tailwindcss/postcss', require(tailwindConfigPath.value)]
+    : ['@tailwindcss/postcss'];
 
   htmlConfig = merge(
     {},
     {
       filename: 'index.html',
       additionalEntryForSelfhost: true,
+      copySharedPublicAssets: true,
       injectGlobalErrorHandler: true,
       emitAssetsManifest: true,
     },
@@ -268,12 +276,9 @@ export function createHTMLTargetConfig(
                   loader: 'postcss-loader',
                   options: {
                     postcssOptions: {
-                      plugins: pkg.join('tailwind.config.js').exists()
+                      plugins: hasTailwind
                         ? [
-                            [
-                              '@tailwindcss/postcss',
-                              require(pkg.join('tailwind.config.js').value),
-                            ],
+                            tailwindPlugin,
                             ['autoprefixer'],
                             ...(buildConfig.isAdmin
                               ? [queuedashScopePostcssPlugin()]
@@ -318,6 +323,7 @@ export function createHTMLTargetConfig(
         }),
       new VanillaExtractPlugin(),
       !buildConfig.isAdmin &&
+        htmlConfig.copySharedPublicAssets &&
         new rspack.CopyRspackPlugin({
           patterns: [
             {