* Introduce RelatedObjectCountField
* Introduce get_annotations_for_serializer() and enable dynamic annotations
* Add RelatedObjectCountFields to serializers; remove static annotations from querysets
* Remove annotations cleanup logic from BriefModeMixin
* Annotate type for RelatedObjectCountField
* Remove redundant field on TagSerializer
* Add missing reverse relationship for power feeds to rack
* Refactor RelatedObjectCountField to take a single relationship name
* Enable dynamic field inclusion for REST API serializers
* Recurse through nested serializer when resolving prefetches
* Remove obsolete calls to prefetch_related() for API views
* Remove support for brief_prefetch_fields viewset attribute
* Rename query parameter
* Fixes#15133: Fix FHRP group representation on assignments endpoint under brief mode (#15134)
* Fixes#15133: Fix FHRP group representation on assignments endpoint under brief mode
* Update API test
* Restore get_queryset() on BriefModeMixin, minus prefetch logic
* get_prefetches_for_serializer() should reference serializer field source if set
* WIP
* WIP
* Add git sync
* Fix file hashing
* Add last_synced to DataSource
* Build out UI & API resources
* Add status field to DataSource
* Add UI control to sync data source
* Add API endpoint to sync data sources
* Fix display of DataSource job results
* DataSource password should be write-only
* General cleanup
* Add data file UI view
* Punt on HTTP, FTP support for now
* Add DataSource URL validation
* Add HTTP proxy support to git fetcher
* Add management command to sync data sources
* DataFile REST API endpoints should be read-only
* Refactor fetch methods into backend classes
* Replace auth & git branch fields with general-purpose parameters
* Fix last_synced time
* Render discrete form fields for backend parameters
* Enable dynamic edit form for DataSource
* Register DataBackend classes in application registry
* Add search indexers for DataSource, DataFile
* Add single & bulk delete views for DataFile
* Add model documentation
* Convert DataSource to a primary model
* Introduce pre_sync & post_sync signals
* Clean up migrations
* Rename url to source_url
* Clean up filtersets
* Add API & filterset tests
* Add view tests
* Add initSelect() to HTMX refresh handler
* Render DataSourceForm fieldsets dynamically
* Update compiled static resources
