FN-9166: preserve implementation-incomplete merge failures
Keep structured incomplete-implementation failures intact so graph recovery can resume or fail closed without retrying a no-op merge.
- Preserve normalized implementation-incomplete reasons during direct merge-attempt classification.
- Cover primitive, legacy seam, resumable, fail-closed, and cancellation paths.
- Document the merge-boundary invariant and add a patch changeset.
Files changed:
.../fn-9166-preserve-implementation-incomplete.md | 7 ++
docs/architecture.md | 2 +-
.../merge-node-paused-abort-retryable.test.ts | 76 ++++++++++++++++++++++
.../__tests__/workflow-merge-cancellation.test.ts | 15 ++++-
.../src/__tests__/workflow-merge-nodes.test.ts | 46 +++++++++++++
.../engine/src/workflows/workflow-merge-nodes.ts | 13 +++-
6 files changed, 155 insertions(+), 4 deletions(-)
Fusion-Task-Id: FN-9166
Fusion-Task-Lineage: 1b7946bf-62e3-42f0-8c8c-09230fef22bb
Co-authored-by: Fusion (runfusion.ai) <noreply@runfusion.ai>
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