Handle revision tasks in measure tasklist status and preview

[j-maynard]

measureStatus in TasklistStateDTO now checks revision.tasks.measure before the isUpdate guard, so an in-progress revision task takes priority over the update/unchanged fallback. A task with lookupTableUpdated: false returns NotStarted (lookup needs to be re-uploaded), and lookupTableUpdated: true returns Updated. Without a task the existing isUpdate → Unchanged / joinColumn → Completed logic is unchanged.

getPreviewOfMeasure now forwards draftRevision.tasks to getMeasurePreview, so when a revision has an outstanding measure task the preview renders the raw fact-table column rather than the stale lookup table. The revisionTasks parameter type is widened to RevisionTask | null to accommodate the optional-chained value.

Tests added for:

• measureStatus returning NotStarted/Updated based on the task's lookupTableUpdated flag (overriding isUpdate)
• getMeasurePreview treating an explicit null for revisionTasks the same as undefined

[Copilot]

Pull request overview

This PR improves how measure-related revision tasks affect publisher UX by prioritizing revision task state in the tasklist and ensuring the measure preview doesn’t show stale lookup-table data during an in-progress revision.

Changes:

• Update TasklistStateDTO.measureStatus to prefer revision.tasks.measure.lookupTableUpdated over the isUpdate → Unchanged fallback.
• Forward draftRevision.tasks into getMeasurePreview so measure preview can bypass the lookup-table path when a revision measure task exists.
• Add unit tests covering task-driven measureStatus outcomes and null handling for revisionTasks in getMeasurePreview.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
src/dtos/tasklist-state-dto.ts	Prioritizes revision measure task state (NotStarted/Updated) over update fallback logic.
src/controllers/measure.ts	Passes draftRevision.tasks into getMeasurePreview to render an accurate preview during revisions.
src/services/measure-handler.ts	Widens revisionTasks parameter type to allow null from optional-chained callers.
test/unit/dtos/tasklist-state-dto.test.ts	Adds tests verifying measureStatus returns NotStarted/Updated based on lookupTableUpdated.
test/unit/services/measure-handler.test.ts	Adds test verifying null revisionTasks behaves like “absent” tasks.