fix: Add babel configuration for Playwright to handle TypeScript declare fields

- Configure babel plugins for TypeScript with allowDeclareFields option
- Add module resolver for @ alias to src directory
- Create custom babel plugin to stub Vue/CSS imports
- Add browser globals polyfill using happy-dom for Node.js context
- Update playwright.i18n.config.ts with babel configuration

This enables collect-i18n tests to run with proper TypeScript and module transformations.

package.json

@@ -32,12 +32,17 @@
     "knip": "knip --cache",
     "knip:no-cache": "knip",
     "locale": "lobe-i18n locale",
-    "collect-i18n": "npx playwright test --config=playwright.i18n.config.ts",
+    "collect-i18n": "playwright test --config=playwright.i18n.config.ts",
     "json-schema": "tsx scripts/generate-json-schema.ts",
     "storybook": "nx storybook -p 6006",
     "build-storybook": "storybook build"
   },
   "devDependencies": {
+    "@babel/core": "^7.28.4",
+    "@babel/plugin-transform-modules-commonjs": "^7.27.1",
+    "@babel/plugin-transform-typescript": "^7.28.0",
+    "@babel/preset-env": "^7.28.3",
+    "@babel/preset-typescript": "^7.27.1",
     "@eslint/js": "^9.8.0",
     "@iconify-json/lucide": "^1.2.66",
     "@iconify/tailwind": "^1.2.0",
@@ -62,7 +67,15 @@
     "@vitejs/plugin-vue": "^5.1.4",
     "@vitest/coverage-v8": "^3.2.4",
     "@vitest/ui": "^3.0.0",
+    "@vue/babel-plugin-jsx": "^1.5.0",
     "@vue/test-utils": "^2.4.6",
+    "babel-helper-vue-jsx-merge-props": "^2.0.3",
+    "babel-plugin-module-resolver": "^5.0.2",
+    "babel-plugin-syntax-jsx": "^6.18.0",
+    "babel-plugin-transform-import-ignore": "^1.1.0",
+    "babel-plugin-transform-vue-jsx": "^3.7.0",
+    "babel-preset-env": "^1.7.0",
+    "babel-preset-typescript-vue3": "^2.1.1",
     "eslint": "^9.34.0",
     "eslint-config-prettier": "^10.1.2",
     "eslint-plugin-prettier": "^5.2.6",