phsl / new-api

The Linux/Vite build failed with:
“Could not resolve "./headerbar" from "src/components/layout/PageLayout.jsx"”

On Linux and with stricter ESM/rollup resolution, directory index files (index.jsx)
may not be auto-resolved reliably. Explicitly importing the index file ensures
cross-platform stability.

Changes:
- Update PageLayout import from "./headerbar" to "./headerbar/index.jsx"

Impact:
- Fixes build on Linux
- No runtime behavior changes

Verification:
- Linter passes for web/src/components/layout/PageLayout.jsx

Notes:
- Prefer explicit index file imports (and extensions) to avoid platform differences.