feat: integriertes Dokumentations-Wiki für NetBox hinzufügen

- Markdown-Dokumentationen direkt in NetBox erstellen
- Dokumente Standorten, Racks, Geräten, VMs und Clustern zuordnen
- DOCX-, XLSX-, PDF-, Markdown- und Textimporte unterstützen
- REST-API, Suche, Berechtigungen und Änderungsprotokoll ergänzen
- Installation, Konfiguration und Importgrenzen dokumentieren

netbox_documentation/template_content.py

@@ -0,0 +1,26 @@
+from netbox.plugins import PluginTemplateExtension
+from django.contrib.contenttypes.models import ContentType
+from .models import DocumentAssignment
+
+
+class ObjectDocumentation(PluginTemplateExtension):
+    models = [
+        "dcim.region", "dcim.site", "dcim.location", "dcim.rack", "dcim.device",
+        "virtualization.virtualmachine", "virtualization.cluster", "tenancy.tenant",
+    ]
+
+    def right_page(self):
+        obj = self.context["object"]
+        content_type = ContentType.objects.get_for_model(obj)
+        assignments = DocumentAssignment.objects.filter(
+            assigned_object_type=content_type, assigned_object_id=obj.pk,
+            document__is_published=True,
+        ).select_related("document")
+        return self.render("netbox_documentation/inc/object_documents.html", extra_context={
+            "documentation_assignments": assignments,
+            "content_type": content_type,
+        })
+
+
+template_extensions = [ObjectDocumentation]
+