feat(ui): Camera-Icon im Header mit Gemini-Config- und Offline-Gate

src/routes/+layout.server.ts

@@ -3,6 +3,7 @@ import { env } from '$env/dynamic/private';
 
 export const load: LayoutServerLoad = () => {
   return {
-    version: env.KOCHWAS_TAG ?? 'dev'
+    version: env.KOCHWAS_TAG ?? 'dev',
+    geminiConfigured: Boolean(env.GEMINI_API_KEY)
   };
 };

src/routes/+layout.svelte

@@ -2,7 +2,15 @@
   import { onMount } from 'svelte';
   import { page } from '$app/stores';
   import { goto, afterNavigate } from '$app/navigation';
-  import { Settings, CookingPot, Utensils, Menu, BookOpen, ArrowLeft } from 'lucide-svelte';
+  import {
+    Settings,
+    CookingPot,
+    Utensils,
+    Menu,
+    BookOpen,
+    ArrowLeft,
+    Camera
+  } from 'lucide-svelte';
   import { profileStore } from '$lib/client/profile.svelte';
   import { wishlistStore } from '$lib/client/wishlist.svelte';
   import { pwaStore } from '$lib/client/pwa.svelte';
@@ -232,6 +240,22 @@
       </div>
     {/if}
     <div class="bar-right">
+      {#if data.geminiConfigured}
+        <a
+          href={network.online ? '/new/from-photo' : ''}
+          class="nav-link magic-link"
+          class:disabled={!network.online}
+          aria-label="Rezept aus Foto erstellen"
+          title={network.online
+            ? 'Rezept aus Foto erstellen'
+            : 'Offline — braucht Internet'}
+          onclick={(e) => {
+            if (!network.online) e.preventDefault();
+          }}
+        >
+          <Camera size={20} strokeWidth={2} />
+        </a>
+      {/if}
       <a
         href="/wishlist"
         class="nav-link wishlist-link"
@@ -537,6 +561,11 @@
   .nav-link:hover {
     background: #f4f8f5;
   }
+  .nav-link.disabled {
+    color: #999;
+    pointer-events: none;
+    cursor: not-allowed;
+  }
   .badge {
     position: absolute;
     top: -2px;