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/models.py

@@ -0,0 +1,60 @@
+from django.contrib.contenttypes.fields import GenericForeignKey
+from django.contrib.contenttypes.models import ContentType
+from django.db import models
+from django.urls import reverse
+from netbox.models import NetBoxModel
+
+
+class Document(NetBoxModel):
+    title = models.CharField(max_length=200)
+    slug = models.SlugField(max_length=200, unique=True)
+    body = models.TextField(blank=True, help_text="Markdown")
+    summary = models.CharField(max_length=500, blank=True)
+    is_published = models.BooleanField(default=True)
+
+    class Meta:
+        ordering = ("title",)
+        permissions = (("import_document", "Can import office documents"),)
+
+    def __str__(self):
+        return self.title
+
+    def get_absolute_url(self):
+        return reverse("plugins:netbox_documentation:document", args=[self.pk])
+
+
+class DocumentAssignment(NetBoxModel):
+    document = models.ForeignKey(Document, on_delete=models.CASCADE, related_name="assignments")
+    assigned_object_type = models.ForeignKey(ContentType, on_delete=models.CASCADE)
+    assigned_object_id = models.PositiveBigIntegerField()
+    assigned_object = GenericForeignKey("assigned_object_type", "assigned_object_id")
+    note = models.CharField(max_length=200, blank=True)
+
+    class Meta:
+        ordering = ("document", "assigned_object_type", "assigned_object_id")
+        constraints = [models.UniqueConstraint(
+            fields=("document", "assigned_object_type", "assigned_object_id"),
+            name="%(app_label)s_%(class)s_unique_assignment",
+        )]
+
+    def __str__(self):
+        return f"{self.document} → {self.assigned_object}"
+
+
+def attachment_upload_path(instance, filename):
+    return f"netbox_documentation/{instance.document_id}/{filename}"
+
+
+class DocumentAttachment(NetBoxModel):
+    document = models.ForeignKey(Document, on_delete=models.CASCADE, related_name="attachments")
+    file = models.FileField(upload_to=attachment_upload_path)
+    original_name = models.CharField(max_length=255)
+    content_type = models.CharField(max_length=100, blank=True)
+    size = models.PositiveBigIntegerField(default=0)
+
+    class Meta:
+        ordering = ("original_name",)
+
+    def __str__(self):
+        return self.original_name
+