Fix recipe list links and home page recipe count

- Template used recipe.id but service returns recipe.recipe_id
- Add recipe count to home page stats

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

app/templates/recipes/list.html

@@ -15,7 +15,7 @@
     {% if recipes %}
     <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4">
         {% for recipe in recipes %}
-        <a href="/recipe/{{ recipe.id }}"
+        <a href="/recipe/{{ recipe.recipe_id }}"
            class="bg-gray-800 border border-gray-700 rounded-lg p-4 hover:border-gray-600 transition-colors">
             <div class="flex items-center justify-between mb-2">
                 <span class="font-medium text-white">{{ recipe.name }}</span>