Simplify web terminal routes and home layout

- Redirect legacy signals/charts/replay pages to home
- Trim nav and update live subscriptions for home and tape
- Refresh terminal topbar and layout behavior

apps/web/app/signals/page.tsx

@@ -1,7 +1,7 @@
-import { SignalsRoute } from "../terminal";
+import { redirect } from "next/navigation";
 
 export const dynamic = "force-dynamic";
 
 export default function Page() {
-  return <SignalsRoute />;
+  redirect("/");
 }