Closes #19589: Background job for bulk operations (#19804)

* Initial work on #19589

* Add tooling for handling background requests

* UI notification should link to enqueued job

* Use an informative name for the job

* Disable background jobs for file uploads

netbox/utilities/jobs.py

@@ -0,0 +1,46 @@
+from dataclasses import dataclass
+from typing import List
+
+from netbox.jobs import AsyncViewJob
+from utilities.request import copy_safe_request
+
+__all__ = (
+    'AsyncJobData',
+    'is_background_request',
+    'process_request_as_job',
+)
+
+
+@dataclass
+class AsyncJobData:
+    log: List[str]
+    errors: List[str]
+
+
+def is_background_request(request):
+    """
+    Return True if the request is being processed as a background job.
+    """
+    return getattr(request, '_background', False)
+
+
+def process_request_as_job(view, request, name=None):
+    """
+    Process a request using a view as a background job.
+    """
+
+    # Check that the request that is not already being processed as a background job (would be a loop)
+    if is_background_request(request):
+        return
+
+    # Create a serializable copy of the original request
+    request_copy = copy_safe_request(request)
+    request_copy._background = True
+
+    # Enqueue a job to perform the work in the background
+    return AsyncViewJob.enqueue(
+        name=name,
+        user=request.user,
+        view_cls=view,
+        request=request_copy,
+    )