feat(web): management console — TanStack Start + orval + shadcn + Paraglide

Browser UI for the host's management REST API (mgmt.rs / docs/api/openapi.json).

Stack, exactly as specified:
- TanStack Start (Vite, SPA mode) — file-based routes, SSR shell + client hydration.
- React Query via orval codegen from the checked-in OpenAPI spec: a custom fetch mutator
  (src/api/fetcher.ts) centralizes the base URL, the bearer token (Settings → localStorage),
  JSON, and a throwing ApiError; the query client skips retries on 4xx. orval returns the
  response body directly (includeHttpResponseReturnType:false) so a query's `.data` is the
  typed payload; GET→useQuery, POST/DELETE→useMutation by method.
- shadcn/ui on Tailwind v4 (CSS-first tokens, dark-first) — button/card/badge/input/label/
  table/skeleton primitives hand-authored from the canonical source.
- Paraglide i18n (en + de) with a reactive useLocale() hook and a language switcher.

Pages: dashboard (live status — video/audio/session/stream, stop-session + request-IDR,
2s polling), host (identity/codecs/ports), clients (paired list + unpair), pairing (PIN
submit, polls pin_pending), settings (API token + language).

Dev server proxies /api → 127.0.0.1:47990 (same-origin, no CORS; PUNKTFUNK_MGMT_URL to
override). Generated code (orval client, paraglide runtime, routeTree) is gitignored and
reproduced by `pnpm codegen` (prepare/pre* scripts). Validated live against `serve`: API
shapes match, dev proxy works, SSR shell renders the localized nav, build + tsc green.

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

web/src/components/ui/label.tsx

@@ -0,0 +1,18 @@
+import * as React from 'react'
+import { cn } from '@/lib/utils'
+
+const Label = React.forwardRef<HTMLLabelElement, React.LabelHTMLAttributes<HTMLLabelElement>>(
+  ({ className, ...props }, ref) => (
+    <label
+      ref={ref}
+      className={cn(
+        'text-sm font-medium leading-none peer-disabled:cursor-not-allowed peer-disabled:opacity-70',
+        className,
+      )}
+      {...props}
+    />
+  ),
+)
+Label.displayName = 'Label'
+
+export { Label }