chore: adopt namespace pattern for accommodation booking controllers

templates/groups/offer/modal_accept_confirmation.html.twig

@@ -0,0 +1,33 @@
+{% extends 'htmx_modal.html.twig' %}
+
+{% block title %}Angebot verbindlich buchen{% endblock %}
+
+{% block content %}
+    {% from '_partials/_validation_errors.html.twig' import validation_alert %}
+    {# Generic title: both fields can fail, and each renders its own message inline. #}
+    {{ validation_alert(confirmationForm, null, false) }}
+
+    <p class="mb-6">
+        Möchtest du dieses Angebot jetzt verbindlich buchen?
+    </p>
+
+    {{ form_start(confirmationForm, {
+        'action': path('app_groups_offer_confirm', { uuid: booking.uuid }),
+        'attr': {
+            'hx-target': '#htmx-modal',
+            'hx-swap': 'outerHTML',
+        }
+    }) }}
+        {{ form_row(confirmationForm.remarks) }}
+        {{ form_row(confirmationForm.termsAccepted) }}
+
+        <div class="mt-6 flex flex-col space-y-4 md:flex-row md:space-y-0 justify-between">
+            <button type="button" class="button button--secondary" {{ stimulus_action('modal', 'close') }}>
+                Abbrechen
+            </button>
+            <button type="submit" class="button button--primary">
+                Jetzt verbindlich buchen
+            </button>
+        </div>
+    {{ form_end(confirmationForm) }}
+{% endblock %}