fix(embed): skip site chrome on /widget routes via root layout

(embed)/+layout@.svelte only resets intermediate layouts — root
+layout.svelte still wrapped every widget page with Header, Footer,
TopBanner, Breadcrumbs, Skip-Link, OG/JSON-LD/Analytics.

Root layout now derives isEmbed from $page.route.id (matches /(embed))
and renders just {@render children()} in that branch. svelte:head is
gated too: embed mode emits only the favicon, leaving the page free to
set its own <title> and noindex meta.

+layout.server.ts short-circuits the bootstrap batch (navigation,
footer, page_config, logo) for embed routes — saves one CMS roundtrip
+ logo transform per widget request, and avoids double-counting in
Umami/pm86 analytics when the widget is iframed elsewhere.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/routes/+layout.server.ts

@@ -48,9 +48,33 @@ function getSlugFromEntry(entry: NavLinkEntry): string {
   return e.slug ?? e._slug ?? '';
 }
 
-export const load: LayoutServerLoad = async ({ locals }) => {
+export const load: LayoutServerLoad = async ({ locals, route }) => {
   const translations = locals.translations ?? {};
 
+  // Embed-Routen ((embed)/...) brauchen kein Site-Chrome. Bootstrap-Batch
+  // wird übersprungen — spart 1 CMS-Roundtrip + Logo-Transform pro Request.
+  // Layout-Komponente rendert über `isEmbed` ohne Header/Footer/Banner.
+  if ((route.id ?? '').startsWith('/(embed)')) {
+    const siteName =
+      (import.meta.env.PUBLIC_SITE_NAME as string | undefined) || SITE_NAME;
+    const siteBaseUrl = (env.PUBLIC_SITE_URL || '').replace(/\/$/, '');
+    return {
+      headerLinks: [] as NavLink[],
+      socialLinks: [] as SocialLink[],
+      footerData: null as FooterEntry | null,
+      logoUrl: null as string | null,
+      logoSvgHtml: null as string | null,
+      logoSocialImage: null as string | null,
+      siteName,
+      siteBaseUrl,
+      translations,
+      pageConfig: null as PageConfigEntry | null,
+      seoTitleTemplate: null,
+      seoDescriptionTemplate: null,
+      analyticsPm86SiteId: null,
+    };
+  }
+
   // Layout-Bootstrap: Navigation (header + social), Footer, page_config in
   // einem einzigen HTTP-Roundtrip (POST /api/content/_batch). Reduziert von
   // 4 sequentiellen Calls auf 1. Page-/Post-Stubs gehen separat (sparse

src/routes/+layout.svelte

@@ -16,6 +16,14 @@
 
   let { data, children }: { data: LayoutData; children: import('svelte').Snippet } = $props();
 
+  /**
+   * Embed-Routen (z.B. /widget/...) liegen in der `(embed)`-Route-Group und
+   * sollen ohne Site-Chrome (Header, Footer, TopBanner, Breadcrumbs, Skip-Link,
+   * Preview-Banner) gerendert werden — auch SEO-Tags ausser noindex sind irrelevant,
+   * weil das Widget per `<iframe>` eingebettet wird.
+   */
+  const isEmbed = $derived(($page.route.id ?? '').startsWith('/(embed)'));
+
   // Live-preview reload bridge: when the page was loaded with
   // `?preview_draft=...`, accept `rustycms:reload` postMessage events from the
   // admin iframe parent and re-run the SvelteKit `load()` so the iframe
@@ -175,6 +183,11 @@
 </script>
 
 <svelte:head>
+  {#if isEmbed}
+    <!-- Embed-Modus: minimaler Head, kein OG/JSON-LD/Analytics. Page setzt
+         eigenen <title> und robots-meta. -->
+    <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
+  {:else}
     <meta name="theme-color" content="#ffffff" />
     <meta name="robots" content={robotsContent} />
     {#if bannerPreload}
@@ -266,9 +279,13 @@
     {#if formbricksScript}
       {@html formbricksScript}
     {/if}
+  {/if}
 </svelte:head>
 
 <TranslationProvider translations={data.translations}>
+  {#if isEmbed}
+    {@render children()}
+  {:else}
     <a
       href="#main-content"
       class="sr-only focus:not-sr-only focus:fixed focus:top-2 focus:left-2 focus:z-[100] focus:bg-white focus:px-3 focus:py-2 focus:shadow focus:outline focus:outline-2 focus:outline-wald-600 focus:rounded-xs"
@@ -333,4 +350,5 @@
         <Footer footer={data.footerData} translations={data.translations} />
       </div>
     </div>
+  {/if}
 </TranslationProvider>