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/styles.css

@@ -0,0 +1,90 @@
+@import 'tailwindcss';
+@import 'tw-animate-css';
+
+@custom-variant dark (&:is(.dark *));
+
+/* shadcn/ui design tokens (neutral base, dark-first to match a streaming console). */
+:root {
+  --radius: 0.625rem;
+  --background: oklch(1 0 0);
+  --foreground: oklch(0.145 0 0);
+  --card: oklch(1 0 0);
+  --card-foreground: oklch(0.145 0 0);
+  --popover: oklch(1 0 0);
+  --popover-foreground: oklch(0.145 0 0);
+  --primary: oklch(0.205 0 0);
+  --primary-foreground: oklch(0.985 0 0);
+  --secondary: oklch(0.97 0 0);
+  --secondary-foreground: oklch(0.205 0 0);
+  --muted: oklch(0.97 0 0);
+  --muted-foreground: oklch(0.556 0 0);
+  --accent: oklch(0.97 0 0);
+  --accent-foreground: oklch(0.205 0 0);
+  --destructive: oklch(0.577 0.245 27.325);
+  --destructive-foreground: oklch(0.985 0 0);
+  --border: oklch(0.922 0 0);
+  --input: oklch(0.922 0 0);
+  --ring: oklch(0.708 0 0);
+  --success: oklch(0.6 0.13 160);
+}
+
+.dark {
+  --background: oklch(0.145 0 0);
+  --foreground: oklch(0.985 0 0);
+  --card: oklch(0.205 0 0);
+  --card-foreground: oklch(0.985 0 0);
+  --popover: oklch(0.205 0 0);
+  --popover-foreground: oklch(0.985 0 0);
+  --primary: oklch(0.922 0 0);
+  --primary-foreground: oklch(0.205 0 0);
+  --secondary: oklch(0.269 0 0);
+  --secondary-foreground: oklch(0.985 0 0);
+  --muted: oklch(0.269 0 0);
+  --muted-foreground: oklch(0.708 0 0);
+  --accent: oklch(0.269 0 0);
+  --accent-foreground: oklch(0.985 0 0);
+  --destructive: oklch(0.704 0.191 22.216);
+  --destructive-foreground: oklch(0.985 0 0);
+  --border: oklch(1 0 0 / 10%);
+  --input: oklch(1 0 0 / 15%);
+  --ring: oklch(0.556 0 0);
+  --success: oklch(0.7 0.15 160);
+}
+
+@theme inline {
+  --radius-sm: calc(var(--radius) - 4px);
+  --radius-md: calc(var(--radius) - 2px);
+  --radius-lg: var(--radius);
+  --radius-xl: calc(var(--radius) + 4px);
+  --color-background: var(--background);
+  --color-foreground: var(--foreground);
+  --color-card: var(--card);
+  --color-card-foreground: var(--card-foreground);
+  --color-popover: var(--popover);
+  --color-popover-foreground: var(--popover-foreground);
+  --color-primary: var(--primary);
+  --color-primary-foreground: var(--primary-foreground);
+  --color-secondary: var(--secondary);
+  --color-secondary-foreground: var(--secondary-foreground);
+  --color-muted: var(--muted);
+  --color-muted-foreground: var(--muted-foreground);
+  --color-accent: var(--accent);
+  --color-accent-foreground: var(--accent-foreground);
+  --color-destructive: var(--destructive);
+  --color-destructive-foreground: var(--destructive-foreground);
+  --color-success: var(--success);
+  --color-border: var(--border);
+  --color-input: var(--input);
+  --color-ring: var(--ring);
+}
+
+@layer base {
+  * {
+    border-color: var(--border);
+  }
+  body {
+    background-color: var(--background);
+    color: var(--foreground);
+    font-feature-settings: 'rlig' 1, 'calt' 1;
+  }
+}