Ability to import sessions into a dataset from an annotation queue

[snopoke]

The inverse of #3045

[SmittieC]

• Valid AnnotationQueue candidates are those whose .items have sessions
• When the user selected a queue, call create_dataset_from_sessions_task for each session
• Importing session into the dataset should be idempotent i.e. not create duplicates. We can easily achieve this by looking at existing EvaluationMessage's sessions

@claude look at this please

[claude]

Claude finished @SmittieC's task in 21m 53s —— View job • claude/issue-3341-20260513-1453 • Create PR ➔

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Task: Add ability to import sessions into a dataset from an annotation queue

• Explore the codebase: AnnotationQueue, AnnotationItem, EvaluationMessage, create_dataset_from_sessions_task
• Confirm idempotency: the existing task dedups on EvaluationMessage.session_id — re-imports are no-ops
• Backend: new ImportFromAnnotationQueueForm and ImportFromAnnotationQueue view
• URL: dataset/<pk>/import-from-queue/ (name: evaluations:dataset_import_from_queue)
• Template: templates/evaluations/import_from_annotation_queue.html
• Entry point button on session-mode dataset edit page
• Tests: 13 new tests covering form filtering, view permissions, idempotency, and edge cases
• Lint (ruff check + ruff format) and full test runs for apps/evaluations/ + apps/human_annotations/ (310 passed)
• Commit and push

Summary

Added an "Import from Annotation Queue" entry point on session-mode dataset edit pages. The view (apps/evaluations/views/dataset_views.py:687) lets the user pick any non-archived AnnotationQueue in their team that has at least one item with a session FK, then dispatches the existing create_dataset_from_sessions_task with the queue's session external IDs. The task's existing dedup against EvaluationMessage.session_id handles idempotency — re-importing the same queue is a no-op.

• Scope: session-mode datasets only (mirrors what the trigger comment specified). Message-mode datasets 404 on this endpoint.
• Permissions: gated by evaluations.change_evaluationdataset.
• Queue visibility: team-scoped, mirroring the inverse ImportFromDataset pattern (Import annotation queue as dataset #3045). Message-only queue items are filtered out.

Not done

• ty check (Python type-check) was blocked by the sandbox in this environment, so I couldn't run it. Ruff lint/format are clean and all tests pass.

· Branch: claude/issue-3341-20260513-1453