fix(e2e): strip ANSI codes when detecting Vite ready output

Vite output in CI contains ANSI color codes that break the
'Local:' substring check. Strip them before matching.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: piotrski

packages/e2e-tests/src/vite-server.ts

@@ -56,7 +56,8 @@ export async function startViteServer(
     }, 30_000);
 
     const onOutput = (chunk: Buffer) => {
-      const output = chunk.toString();
+      // Strip ANSI escape codes so detection works in CI
+      const output = chunk.toString().replace(/\x1b\[[0-9;]*m/g, '');
       if (output.includes('Local:') || output.includes(`localhost:${vitePort}`)) {
         clearTimeout(timeout);
         resolve();