Gate search behind CompanySettings.searchEnabled; fix two reported bugs

Search icon now gated behind the new backend toggle, same pattern as
wishlistEnabled — off by default.

Fixed: blog category filter bar was invisible — it was wrapped in
<Reveal>, which sits right at/just past the hero's bottom edge, the
exact "already near the initial viewport" position Reveal.tsx's own
comment documents as a whileInView(margin:"-80px") trap (an element
already visible without scrolling can permanently never register as
"entered view", since `once: true` never gets a second chance). Now a
plain div, no scroll-reveal animation needed for a filter bar anyway.

Fixed: wishlist count showing one behind on the Navbar badge —
useWishlist.ts's toggle() broadcast the "refetch me" event immediately
after the optimistic local update, before the POST request was even
sent. Another instance's resulting refetch could race the actual
server-side write, get the pre-toggle list, and then never get told to
refetch again. Broadcast now only fires after the request settles.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

app/layout.tsx

@@ -4,7 +4,7 @@ import "./globals.css";
 import { Navbar } from "./components/Navbar";
 import { CartFlyProvider } from "./components/CartFly";
 import { CartSync } from "./components/CartSync";
-import { getProducts, getSeoSettings, getCompanySettings, getWishlistEnabled } from "./lib/payload";
+import { getProducts, getSeoSettings, getCompanySettings, getWishlistEnabled, getSearchEnabled } from "./lib/payload";
 import { buildOrganizationSchema } from "./lib/structuredData";
 
 const inter = Inter({
@@ -67,7 +67,12 @@ export default async function RootLayout({
   // just to know whether Navbar's "Shop" link should behave as an anchor
   // to the homepage spotlight instead of a real /shop navigation (see
   // Navbar.tsx/ProductSpotlight.tsx).
-  const [products, seller, wishlistEnabled] = await Promise.all([getProducts(), getCompanySettings(), getWishlistEnabled()]);
+  const [products, seller, wishlistEnabled, searchEnabled] = await Promise.all([
+    getProducts(),
+    getCompanySettings(),
+    getWishlistEnabled(),
+    getSearchEnabled(),
+  ]);
   const singleActiveProduct = products.filter((p) => p.active).length === 1;
   // Organization JSON-LD on every page — one canonical node (@id) that
   // Product/Article schemas elsewhere link back to via `{ "@id": ... }`
@@ -87,7 +92,7 @@ export default async function RootLayout({
           <script type="application/ld+json" dangerouslySetInnerHTML={{ __html: JSON.stringify(organizationSchema) }} />
           <CartFlyProvider>
             <CartSync />
-            <Navbar singleActiveProduct={singleActiveProduct} wishlistEnabled={wishlistEnabled} />
+            <Navbar singleActiveProduct={singleActiveProduct} wishlistEnabled={wishlistEnabled} searchEnabled={searchEnabled} />
             {children}
           </CartFlyProvider>
         </body>