feat: add admin views, a booking horizon and confirmation modals

Co-Authored-By: Claude Opus 5 <[email protected]>

templates/admin/_modal_spot.html.twig

@@ -0,0 +1,52 @@
+{#
+    What an administrator sees when clicking an occupied shape on the floor plan.
+
+    Not the edit modal: a shape can hold several bookings on one day once part-day spans exist,
+    so "the booking" has no single referent -- and an administrator releases rather than
+    reschedules. Each row posts to the ordinary app_booking_release route, whose ownership check
+    admits an admin, so there is still one code path that removes a booking.
+#}
+{% extends 'htmx_modal.html.twig' %}
+
+{% block title %}{{ resource.label }} verwalten{% endblock %}
+
+{% block content %}
+    <p class="pb-4 text-sm text-gray-500">
+        {{ resource.type.label }} · {{ date|format_datetime(pattern: 'EEEE, d. MMMM y') }}
+        {%- if resource.group %} · {{ resource.group.label }}{% endif %}
+    </p>
+
+    {% if bookings is empty %}
+        <p class="text-sm text-gray-500">In diesem Zeitraum liegt hier keine Buchung.</p>
+    {% else %}
+        <ul class="divide-y divide-gray-200 border-y border-gray-200">
+            {% for booking in bookings %}
+                <li class="flex items-center justify-between gap-4 py-3">
+                    <div>
+                        <div class="font-semibold">{{ booking.user.name }}</div>
+                        <div class="text-sm text-gray-500">
+                            {{ booking.timeRange }}
+                            {% if booking.partOfSeries %}
+                                <span class="badge bg-gray-100 text-gray-600 ml-1">Serie</span>
+                            {% endif %}
+                        </div>
+                    </div>
+                    {# Same as the edit modal: opens the shared confirmation modal over this one.
+                       Confirming repaints the board out of band and removes both. #}
+                    <button type="button" class="button button--small button--warning"
+                            hx-get="{{ path('app_booking_release', { id: booking.id }) }}"
+                            hx-target="body"
+                            hx-swap="beforeend">
+                        Freigeben
+                    </button>
+                </li>
+            {% endfor %}
+        </ul>
+    {% endif %}
+
+    <div class="flex justify-end pt-6">
+        <button type="button" class="button button--neutral" {{ stimulus_action('modal', 'close') }}>
+            Schließen
+        </button>
+    </div>
+{% endblock %}