Weft v0.1.1

Packaging and example fixes for the first release.

Fixed

• The example/documentation site now runs straight after composer install, with no Node build
  step: its built assets are committed and it defaults to production mode.
• composer require golovanov/weft no longer pulls the example site, tests or CI config into
  vendor/ — the package archive now ships only the engine (src/) and its metadata.

---

Upgrade: none required. golovanov/weft v0.1.1 is API-compatible with v0.1.0; it only changes what
the package archive contains and how the example site is run. Existing sites keep working unchanged.