Bindings between boa-cat (JS engine) and the DOM (html-cat tree) plus fetch (net-cat). v0.7.2 closes the loop on inline `style="..."`: build_element parses the attribute at construction time into camelCase keys on the element's `style` Object (so `<div style="font-size: 14px">` gives `el.style.fontSize === '14px'`), and `extract_document` serialises the post-eval `style` Object back into a kebab-case `style` attribute on the dom-cat element (so `el.style.color = 'blue'` reaches layout-cat / paint-cat through the standard attribute channel). Seventh sub-crate of a Servo-replacement webview runtime targeting Tauri.