feat(web): unify console + docs on @unom/ui; host OpenAPI via Scalar

Move the management console (web/) off shadcn/ui to the shared @unom/ui
design system the marketing site + docs are built on, on the punktfunk
violet brand over dark chrome:

- Add @unom/ui/@unom/style/motion/radix-ui/zod + Geist; web/.npmrc maps the
  @unom scope (packages are public-read, so CI needs no npm auth).
- styles.css: one dark-violet palette (#141019/#1c1530, brand #6c5bf3 ->
  #a79ff8) exposed under BOTH the shadcn token names the routes use and
  @unom/ui's contract, so routes + components both resolve; pulls in
  @unom/ui's material gloss + easings.
- components/ui/* now back onto @unom/ui (AnimatedButton/InputText/Label/
  AnimatedCard); brand-mark/wordmark/logo replace the generic Radio icon in
  the shell + login.
- MaterialProvider (specular gloss) at the root. No UI sounds, like the site.

docs-site: new /api route renders the host management REST API as an
interactive Scalar reference (reads public/openapi.json, a snapshot of
docs/api/openapi.json), branded violet and linked from the top nav, the
docs sidebar, the landing page, and host-cli.md.

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

web/src/components/brand-mark.tsx

@@ -0,0 +1,31 @@
+// punktfunk brand mark: two overlapping circles forming a lens — the violet
+// brand identity (flattened from the clients/apple punktfunk_Logo.icon, shared
+// verbatim with the marketing site + docs). Back-to-front: large light-violet
+// circle, deep-violet circle, light highlight where they overlap.
+export function BrandMark({ className }: { className?: string }) {
+  return (
+    <svg
+      aria-label="punktfunk"
+      role="img"
+      xmlns="http://www.w3.org/2000/svg"
+      viewBox="0 0 1000 1000"
+      className={className}
+    >
+      <title>punktfunk</title>
+      <path
+        d="M403.037,791.672c107.586,0 194.41,-86.824 194.41,-194.41c0,-107.586 -86.824,-194.41 -194.41,-194.41c-107.586,0 -194.41,86.824 -194.41,194.41c0,107.586 86.824,194.41 194.41,194.41Z"
+        fill="#a79ff8"
+      />
+      <path
+        d="M735.276,540.321c76.075,-76.075 76.075,-198.862 0,-274.937c-76.075,-76.075 -198.862,-76.075 -274.937,0c-76.075,76.075 -76.075,198.862 0,274.937c76.075,76.075 198.862,76.075 274.937,0Z"
+        fill="#6c5bf3"
+      />
+      <path
+        d="M647.84,590.737c-64.853,17.403 -136.871,0.597 -187.885,-50.416c-51.013,-51.013 -67.819,-123.032 -50.416,-187.885c64.853,-17.403 136.871,-0.597 187.885,50.416c51.013,51.013 67.819,123.032 50.416,187.885Z"
+        fill="#d2c9fb"
+      />
+    </svg>
+  )
+}
+
+export default BrandMark