fix(e2e): co-locate traces with results.json so CI uploads them

Playwright's default outputDir is packageJsonDir/test-results
(apps/host/test-results), but the JSON reporter writes results.json
relative to the config dir (apps/host/tests/e2e/test-results). The CI
"Upload test results" step uploads only the latter, so trace.zip was
never captured and E2E failures couldn't be diagnosed.

Set an explicit outputDir relative to the config dir so traces land
alongside results.json — the dir CI already uploads and reads.

Author: lrubasze

apps/host/tests/e2e/playwright.config.ts

@@ -53,6 +53,9 @@ if (process.env.CI !== "true") {
 export default defineConfig({
   ...baseConfig,
   testDir: ".",
+  // Co-locate traces with results.json (configDir-relative). The default is
+  // packageJsonDir/test-results, which the CI upload step doesn't cover.
+  outputDir: "test-results",
   timeout: 60_000,
   retries: 1,
   workers: 1,