web-api-cat 0.3.0

Bindings between boa-cat (JS engine) and the DOM (html-cat tree) plus fetch (net-cat). Exposes `document`, `Element` methods, and `fetch` as boa-cat NativeFns so scripts can read/mutate a parsed HTML document and make synchronous HTTP requests. v0.3.0 adds the `cookie` module: `set_document_cookie(document_value, heap, &str) -> Heap` and `get_document_cookie(document_value, &heap) -> Option<String>` so hosts can serialize their cookie jar into `document.cookie` before each script run and read back any writes after. The host owns visibility filters (e.g. `HttpOnly`); this crate only shuttles a string in and out. No mut, no Rc/Arc, no interior mutability, no panics. Seventh sub-crate of a Servo-replacement webview runtime targeting Tauri.