Let plugins run their own PHP code

A plugin can now bring a plugin.php that registers hooks, scheduled tasks, its own tables, public pages and admin screens. Failures stay contained to the plugin; a form on a plugin page can be submitted.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

templates/admin/plugins.html.twig

@@ -56,6 +56,9 @@
                 <dd>{% if plugin.active %}<a href="{{ route.path }}">{{ route.path }}</a>{% else %}<code>{{ route.path }}</code>{% endif %} · {{ route.type }}</dd>
                 {% endfor %}
             </dl>
+            {% if plugin.main %}<p class="muted">Führt eigenen PHP-Code mit den vollen Rechten der Website aus. Nur einschalten, wenn du der Quelle vertraust.</p>{% endif %}
+            {% if runtimeErrors[plugin.name] is defined %}<p class="field-error">Fehler im Plugin: {{ runtimeErrors[plugin.name] }}</p>{% endif %}
+            {% for page in admin[plugin.name].pages %}<p><a href="{{ path('admin_plugin_page', {name: plugin.name, key: page.key}) }}">{{ page.title }}</a></p>{% endfor %}
             {% if plugin.active and plugin.settings is not empty %}
             <form method="post" action="{{ path('admin_plugin_settings', {name: plugin.name}) }}" class="plugin-settings">
                 <input type="hidden" name="_csrf_token" value="{{ csrf_token('plugins') }}">