feat: design tokens, globals CSS, fonts, navigation config

- Rewrite globals.css with dark-theme OKLCH tokens, glass utilities, ambient bg
- Update root layout with Inter + JetBrains Mono fonts, theme script
- Redirect / to /dashboard
- Update navigation config — remove search link, add recordings
- Update analysis search-panel with glass styling

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

services/frontend/src/app/page.tsx

@@ -1,5 +1,4 @@
 import { redirect } from "next/navigation";
-
 export default function RootPage() {
-  redirect("/messages");
+  redirect("/dashboard");
 }