Bengal theme controls anatomy

Packaged chirp-theme hooks for theme menus, search, mobile nav, TOC, and docs tabs

The packagedchirp-themeships static-site controls for appearance menus, search, mobile navigation, docs navigation, table-of-contents tracking, and content tabs.

These are Bengal theme partial and asset hooks, not registry-owned Chirp UI component macros. App-level component contracts still come from the Chirp UI component registry, macros, generated CSS, and manifest.

The full rendered contract, selectors, browser-owned behavior, JavaScript exports, and proof locations live in the canonical source guide: docs/BENGAL-THEME-ANATOMY.md.