feat(admin): add manual reservation operations

backend/bookings/templates/admin/bookings/reservation/operation.html

@@ -0,0 +1,35 @@
+{% extends "admin/base_site.html" %}
+
+{% block content %}
+<div id="content-main">
+  <h1>{{ heading }}</h1>
+  <p>{{ description }}</p>
+
+  <p>
+    <strong>Reservation:</strong> {{ original.name }}<br>
+    <strong>Show:</strong> {{ original.performance.show.title }}<br>
+    <strong>Performance:</strong> {{ original.performance.starts_at }}<br>
+    <strong>Party size:</strong> {{ original.party_size }}
+  </p>
+
+  {% if qr_code_url %}
+    <p>
+      <strong>Check-in URL:</strong><br>
+      <a href="{{ qr_code_url }}">{{ qr_code_url }}</a>
+    </p>
+  {% endif %}
+
+  {% if qr_code_image %}
+    <p><img src="{{ qr_code_image }}" alt="Operational QR code"></p>
+  {% endif %}
+
+  {% if submit_label %}
+    <form method="post">
+      {% csrf_token %}
+      <input type="submit" value="{{ submit_label }}" class="default">
+    </form>
+  {% endif %}
+
+  <p><a href="{{ change_url }}">Back to reservation</a></p>
+</div>
+{% endblock %}