Function use_docs_context 

pub fn use_docs_context(
    current_path: String,
    base_path: impl Into<String>,
    navigate: Callback<String>,
) -> DocsContext

Build a DocsContext from the current docs path as a plain String.

Prefer this over DocsContext::new when the path comes from your router. use_route::<Route>() returns a plain value, not a signal, so wrapping it yourself with use_memo(move || ...) reads no reactive source: the memo runs once and never again, freezing the sidebar highlight, tab sync and mobile-drawer auto-close on the first page visited. (use_memo paired with use_reactive! is correct, but easy to forget.)

Taking the path by value removes the trap — this hook re-runs with your layout component on every navigation and rewraps the path reactively.

let route = use_route::<Route>();
let current_path = match route {
    Route::DocsPage { slug } => slug.join("/"),
    _ => String::new(),
};

let docs_ctx = use_docs_context(current_path, "/docs", Callback::new(move |path: String| {
    nav.push(Route::DocsPage { slug: path.split('/').map(String::from).collect() });
}));