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* AAP-81082 Eliminate LEFT OUTER JOINs in unified job RBAC query UnifiedJobAccess.filtered_queryset() used field-traversal Q objects (inventoryupdate__inventory_source__inventory__id__in=...) which Django translates into LEFT OUTER JOINs. This forces PostgreSQL to scan all rows in main_unifiedjob before filtering — at scale, 99.84% are discarded. Replace with pk__in subqueries that generate IN (SELECT ...) instead, allowing PostgreSQL to skip the unconditional join. EXPLAIN ANALYZE shows a 28% reduction in execution time (496ms -> 355ms), with larger gains expected under concurrent load. * AAP-81082 Eliminate LEFT OUTER JOINs in RBAC filtered_queryset methods Replace field-traversal Q objects with pk__in subqueries across all Access classes that query polymorphic or M2M tables, preventing Django from generating unconditional LEFT OUTER JOINs. Also migrate legacy _accessible_pk_qs / accessible_pk_qs calls to DAB RBAC access_ids_qs. Affected: UnifiedJobAccess, UnifiedJobTemplateAccess, JobAccess, JobEventAccess, LabelAccess. * Fix docstring