fusion

Files

gsxdsm 4f7b3ac78f FN-6439: clear stale near-duplicate flags

Clear near-duplicate decisions when their canonical task is no longer active.

- Add a shared canonical activity helper for near-duplicate detection.
- Clear stale persisted near-duplicate metadata when canonical tasks are done, archived, or deleted.
- Prevent triage and dashboard surfaces from presenting duplicate decisions for inactive canonicals.
- Cover stale-flag cleanup and hidden dashboard affordances with regression tests.

Files changed:
 docs/task-management.md                            |   4 +-
 .../near-duplicate-stale-flag-clear.test.ts        | 105 +++++++++++++++++++++
 packages/core/src/__tests__/near-duplicate.test.ts |  19 +++-
 packages/core/src/index.ts                         |   2 +
 packages/core/src/near-duplicate-canonical.ts      |  25 +++++
 packages/core/src/near-duplicate.ts                |   3 +
 packages/core/src/store.ts                         | 102 +++++++++++++++++++-
 packages/dashboard/app/App.tsx                     |   7 +-
 packages/dashboard/app/components/Column.tsx       |  10 ++
 packages/dashboard/app/components/TaskCard.tsx     |  12 ++-
 .../dashboard/app/components/TaskDetailModal.tsx   |  12 ++-
 packages/dashboard/app/components/WorktreeGroup.tsx     |  30 +++++-
 .../app/components/__tests__/TaskCard.test.tsx     |  28 ++++++
 .../__tests__/TaskDetailModal.rendering.test.tsx   |  26 +++++
 .../near-duplicate-intake.test.ts                  |  24 +++++
 packages/engine/src/triage.ts                      |  10 ++
 16 files changed, 411 insertions(+), 8 deletions(-)

Fusion-Task-Id: FN-6439

Fusion-Task-Lineage: e57b80e8-36aa-4b96-ad13-53b5a431477d

2026-06-14 15:29:35 -07:00