modified: .gitignore

modified:   .vscode/launch.json
	new file:   e2e/playwright-collect-coverage.spec.ts
	modified:   package-lock.json
	modified:   package.json
	modified:   playwright.config.ts
	new file:   scripts/merge-lcov.cjs
	new file:   scripts/normalize-lcov.cjs
	new file:   scripts/playwright-collect-coverage.cjs
	new file:   scripts/remap-and-report.cjs
	modified:   vite.config.ts
	new file:   vitest.config.ts

package.json

@@ -10,7 +10,11 @@
     "lint": "eslint .",
     "test": "vitest",
     "test:coverage": "vitest run --coverage",
-    "test:e2e": "playwright test"
+    "test:e2e": "playwright test",
+    "coverage:unit": "npm run test:coverage",
+    "coverage:e2e": "npm run test:e2e",
+    "coverage:merge": "node scripts/merge-lcov.cjs 'coverage-reports/unit/lcov.info' 'coverage-reports/e2e/coverage.lcov' > coverage-reports/merged/merged.lcov && node scripts/normalize-lcov.cjs coverage-reports/merged/merged.lcov && genhtml coverage-reports/merged/merged.normalized.lcov -o coverage-reports/merged",
+    "coverage:ci": "npm run coverage:unit && npm run coverage:e2e && npm run coverage:merge"
   },
   "dependencies": {
     "@emotion/react": "^11.14.0",
@@ -44,15 +48,22 @@
     "@vitejs/plugin-react": "^5.1.1",
     "@vitest/coverage-v8": "^4.0.14",
     "@vitest/ui": "^4.0.14",
+    "cross-env": "^10.1.0",
     "eslint": "^9.39.1",
     "eslint-plugin-react-hooks": "^7.0.1",
     "eslint-plugin-react-refresh": "^0.4.24",
+    "istanbul-lib-coverage": "^3.2.2",
+    "istanbul-lib-report": "^3.0.1",
+    "istanbul-lib-source-maps": "^5.0.6",
+    "istanbul-reports": "^3.2.0",
     "jsdom": "^27.2.0",
+    "lcov-result-merger": "^5.0.1",
     "msw": "^2.12.3",
     "rollup-plugin-visualizer": "^6.0.5",
     "typescript": "^5.9.3",
     "typescript-eslint": "^8.48.0",
     "vite": "^7.2.6",
+    "vite-plugin-istanbul": "^7.2.1",
     "vitest": "^4.0.14"
   }
 }