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

scripts/playwright-collect-coverage.cjs

@@ -0,0 +1,23 @@
+// tests/playwright-collect-coverage.js
+const fs = require('fs');
+const path = require('path');
+const { test } = require('@playwright/test');
+
+test.afterEach(async ({ page }, testInfo) => {
+  try {
+    // evaluate coverage from the page
+    const coverage = await page.evaluate(() => (globalThis.__coverage__ || {}));
+    if (coverage && Object.keys(coverage).length) {
+      const dir = path.join(process.cwd(), '.nyc_output');
+      fs.mkdirSync(dir, { recursive: true });
+
+      // unique file per worker/test
+      const filename = path.join(dir, `coverage-e2e-${process.pid}-${Date.now()}.json`);
+      fs.writeFileSync(filename, JSON.stringify(coverage));
+      console.log('Wrote coverage:', filename);
+    }
+  } catch (err) {
+    // don't fail tests if coverage collection fails
+    console.warn('Failed to collect coverage from page:', err.message || err);
+  }
+});