Add comments app with models, views, and tests; integrate comments into existing models

history_tracking/models.py

@@ -18,7 +18,8 @@ class HistoricalModel(models.Model):
     id = models.BigAutoField(primary_key=True)
     history: HistoricalRecords = HistoricalRecords(
         inherit=True,
-        bases=(HistoricalChangeMixin,)
+        bases=(HistoricalChangeMixin,),
+        excluded_fields=['comments', 'photos', 'reviews']  # Exclude all generic relations
     )
 
     class Meta:
@@ -116,8 +117,8 @@ class VersionTag(models.Model):
     def __str__(self) -> str:
         return f"{self.name} ({self.branch.name})"
 
-class CommentThread(models.Model):
-    """Represents a thread of comments on a historical record"""
+class HistoricalCommentThread(models.Model):
+    """Represents a thread of comments specific to historical records and version control"""
     content_type = models.ForeignKey(ContentType, on_delete=models.CASCADE)
     object_id = models.PositiveIntegerField()
     content_object = GenericForeignKey('content_type', 'object_id')
@@ -149,7 +150,7 @@ class CommentThread(models.Model):
 
 class Comment(models.Model):
     """Individual comment within a thread"""
-    thread = models.ForeignKey(CommentThread, on_delete=models.CASCADE, related_name='comments')
+    thread = models.ForeignKey(HistoricalCommentThread, on_delete=models.CASCADE, related_name='comments')
     author = models.ForeignKey(User, on_delete=models.SET_NULL, null=True)
     content = models.TextField()
     created_at = models.DateTimeField(auto_now_add=True)