Freeze/hide the Deck designer (not ready for regular users)

- Remove the deckDesigner card from the DIY hub, so it is not listed publicly.
- Gate /diy/deck-designer to platform admins: DeckDesignerPage redirects to /diy
  for everyone else and shows an "Internal preview" badge to admins.

Code and i18n keys are kept. To un-freeze, remove the Navigate guard and re-add
the card in diyGuides.ts (both noted in comments and AGENTS.md).

AGENTS.md

@@ -914,8 +914,15 @@ session with **no other memory of this project**. So:
   parse/escape so commas in names are safe. Next: write our own
   step-by-step guides (NIP-23 `30023` with `t=diy`) to flip the coming-soon cards
   live.
-- **Deck designer — parametric 2D outline + 1:1 template (`/diy/deck-designer`,
-  2026-10-05):** `src/lib/deckDesign.ts` (pure maths) + `components/DeckDesigner.tsx`
+- **Deck designer — FROZEN / HIDDEN (2026-10-05):** ⚠️ **Not ready for regular
+  users.** It is **not listed in the DIY hub** (`diyGuides.ts` has a note where
+  the card was) and `/diy/deck-designer` is **admin-gated** — `DeckDesignerPage`
+  returns `<Navigate to="/diy">` unless `isAdminPubkey(user.pubkey)`, and shows an
+  "Internal preview" badge. To un-freeze: remove the guard in
+  `DeckDesignerPage.tsx` **and** re-add the `deckDesigner` card in
+  `diyGuides.ts`. The i18n keys (`diyUi.cards.deckDesigner.*`, `diyUi.designer.*`)
+  are kept. The code below is otherwise intact.
+  Parametric 2D outline + 1:1 template (`src/lib/deckDesign.ts` (pure maths) + `components/DeckDesigner.tsx`
   + page. Inputs: width, wheelbase, nose, tail (length is **derived** as
   nose+wheelbase+tail), waist, end-roundness, concave, thickness, tail/nose kick,
   and the **truck-hole pattern** — **New school 53.975 × 41.275 mm (2.125″×1.625″)**

src/lib/diyGuides.ts

@@ -65,14 +65,8 @@ export const DIY_CARDS: DiyCard[] = [
     blurbKey: 'diyUi.cards.deckCost.blurb',
     to: '/diy/deck-cost',
   },
-  {
-    id: 'deckDesigner',
-    category: 'boards',
-    emoji: '📐',
-    titleKey: 'diyUi.cards.deckDesigner.title',
-    blurbKey: 'diyUi.cards.deckDesigner.blurb',
-    to: '/diy/deck-designer',
-  },
+  // NOTE: the deck *designer* (`/diy/deck-designer`) is intentionally NOT listed
+  // here — it is frozen/hidden and admin-gated until it is ready. See DeckDesignerPage.
 
   // ── Ramps & wooden obstacles ─────────────────────────────────────────────
   {

src/pages/DeckDesignerPage.tsx

@@ -1,18 +1,30 @@
 import { useSeoMeta } from '@unhead/react';
-import { Link } from 'react-router-dom';
+import { Link, Navigate } from 'react-router-dom';
 import { ArrowLeft, Ruler } from 'lucide-react';
 import { useTranslation } from '@/contexts/language';
+import { useCurrentUser } from '@/hooks/useCurrentUser';
+import { isAdminPubkey } from '@/lib/admins';
 import { DeckDesigner } from '@/components/DeckDesigner';
 
-/** DIY tool page — the parametric 2D deck designer / 1:1 template. */
+/**
+ * DIY tool page — the parametric 2D deck designer / 1:1 template.
+ *
+ * FROZEN / NOT READY FOR REGULAR USERS (2026-10-05): not listed in the DIY hub
+ * and gated to platform admins, so the owner can keep testing it while the public
+ * can't reach it. Un-gate by removing the `Navigate` guard AND re-adding the
+ * `deckDesigner` card in `src/lib/diyGuides.ts`.
+ */
 export default function DeckDesignerPage() {
   const { t } = useTranslation();
+  const { user } = useCurrentUser();
 
   useSeoMeta({
     title: 'Deck Designer — SkateSpots DIY',
     description: 'Design a skateboard or longboard outline, then export a printable 1:1 template, SVG or DXF — concave, kicks, wheelbase and truck holes included.',
   });
 
+  if (!isAdminPubkey(user?.pubkey)) return <Navigate to="/diy" replace />;
+
   return (
     <div className="container mx-auto max-w-6xl px-4 py-8">
       <Link to="/diy" className="mb-4 inline-flex items-center text-sm text-muted-foreground transition-colors hover:text-foreground">
@@ -26,6 +38,9 @@ export default function DeckDesignerPage() {
           {t('diyUi.designer.title')}
         </h1>
         <p className="mt-2 max-w-2xl text-sm text-gray-400">{t('diyUi.designer.intro')}</p>
+        <p className="mt-3 inline-flex items-center rounded-md border border-amber-500/30 bg-amber-500/[0.08] px-2.5 py-1 text-[11px] font-semibold text-amber-200/90">
+          Internal preview · not public yet
+        </p>
       </header>
 
       <DeckDesigner />