ci: build packages before qti a11y checks PIE-605

Ensure dist-only package imports are available before the demo accessibility suite starts its dev server.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: chillenious

.github/workflows/ci.yml

@@ -195,6 +195,9 @@ jobs:
           cd apps/demo
           bunx playwright install --with-deps chromium
 
+      - name: Build packages
+        run: bun run build
+
       - name: Run accessibility verification
         run: bun run verify:a11y