feat: edit selected accommodation of bookings in draft

templates/admin/accommodation_booking/edit.html.twig

@@ -1,8 +1,23 @@
 {% extends 'layout_admin.html.twig' %}
 
 {% block content %}
+    {% set back_params = { 'id': booking.id } %}
+    {% if app.request.query.get('r') %}
+        {% set back_params = back_params | merge({ 'r': app.request.query.get('r') }) %}
+    {% endif %}
+
     <twig:page:heading>{{ booking.recordLabel }} {{ booking.groupName }}</twig:page:heading>
-    <p class="text-sm text-gray-500 mb-6">{{ booking.accommodation.name }}</p>
+    <p class="flex items-center gap-3 text-sm text-gray-500 mb-6">
+        {{ booking.accommodation.name }}
+        {# Only an Entwurf may still move house — see ChangeAccommodationController. #}
+        {% if booking.draft %}
+            <button type="button"
+                    hx-get="{{ path('app_admin_accommodationbooking_change_accommodation', back_params) }}"
+                    hx-target="body"
+                    hx-swap="beforeend"
+                    class="button button--secondary button--small">ändern</button>
+        {% endif %}
+    </p>
 
     {% form_theme form 'forms_admin.html.twig' %}
 
@@ -69,10 +84,6 @@
         </div>
     </div>
     <div class="flex justify-between pt-8">
-        {% set back_params = { 'id': booking.id } %}
-        {% if app.request.query.get('r') %}
-            {% set back_params = back_params | merge({ 'r': app.request.query.get('r') }) %}
-        {% endif %}
         <a href="{{ path('app_admin_accommodationbooking_show', back_params) }}" class="button button--secondary button--small">
             zurück
         </a>