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gsxdsm 1dc636b8b4 FN-8785: deduplicate queued dependency and scope logs

Persist queue episodes atomically so repeated scheduler and self-healing passes do not duplicate diagnostics.

- Add a queued-episode signature with PostgreSQL migration and task serialization support.
- Route dependency and file-scope queue transitions through the atomic deduplication API.
- Cover repeated and concurrent queue transitions, and update scheduler mocks for the new store API.

Files changed:
 .changeset/fn-8785-queued-log-deduplication.md     |   7 +
 docs/architecture.md                               |   1 +
 .../postgres/queued-episode-transition.pg.test.ts  | 158 +++++++++++++++++++++
 .../src/__tests__/postgres/schema-applier.test.ts  |   9 +-
 .../core/src/postgres/migrations/0000_initial.sql  |   1 +
 .../0044_fn_8785_queued_episode_signature.sql      |   3 +
 packages/core/src/postgres/schema-applier.ts       |  12 +-
 packages/core/src/postgres/schema/project.ts       |   1 +
 packages/core/src/store.ts                         |   5 +-
 packages/core/src/task-store/audit-ops.ts          |  80 +++++++++++
 packages/core/src/task-store/persistence.ts        |   2 +
 packages/core/src/task-store/serialization.ts      |   1 +
 packages/core/src/types/task/task-core.ts          |   5 +
 ...executor-outer-dispatch-dependency-gate.test.ts |  39 +++--
 .../engine/src/__tests__/executor-test-helpers.ts  |   7 +
 .../__tests__/scheduler-overlap-starvation.test.ts |  43 +++++-
 .../__tests__/scheduler-workflow-cutover.test.ts   |  35 +++--
 .../self-healing-completion-fanout.test.ts         |  37 +++++
 packages/engine/src/__tests__/self-healing.test.ts |  25 +++-
 packages/engine/src/executor.ts                    |  16 ++-
 packages/engine/src/scheduler.ts                   |  26 ++--
 packages/engine/src/self-healing.ts                | 117 +++++----------
 22 files changed, 491 insertions(+), 139 deletions(-)

Fusion-Task-Id: FN-8785
Fusion-Task-Lineage: 8d68c243-f24e-4db4-bd1d-b7eda01309f6
Co-authored-by: Fusion (runfusion.ai) <noreply@runfusion.ai>

2026-08-04 11:52:15 -07:00