Merge pull request #1575 from Runfusion/feature/workflow-owned-merge-s02-merge-request-projection

refactor(workflow): S02 merge request projection onto work items

docs/plans/workflow-owned-merge-stack/s02-merge-request-projection.md

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+---
+title: "S02: merge request projection onto work items"
+type: refactor
+status: draft-stack-handoff
+date: 2026-06-09
+slice: S02
+milestone: "Foundation"
+origin: docs/plans/2026-06-09-003-refactor-workflow-owned-merge-full-migration-slices-plan.md
+stack_base: feature/workflow-owned-merge-retry-scheduling-plan
+---
+
+# S02: merge request projection onto work items
+
+## Stack Role
+
+This draft PR reserves the S02 review slot in the workflow-owned merge,
+retry, scheduling, and recovery migration stack. It is intentionally a handoff
+artifact, not the completed implementation for this slice.
+
+## Milestone
+
+Foundation
+
+## Depends On
+
+S1 workflow work-item schema and store API.
+
+## Goal
+
+Project existing merge request records into workflow work-item state so dashboards and schedulers can dual-read before cutover.
+
+## Expected File Scope
+
+packages/core/src/store.ts; packages/core/src/task-merge.ts; packages/core/src/types.ts; merge-request and dual-observe tests.
+
+## Expected Tests
+
+Projection tests for queued/running/retrying/manual-required/succeeded/exhausted states, hard cancel cancellation, and restart idempotency.
+
+## Exit Gate
+
+Every merge request state has a lossless workflow work-item equivalent.
+
+## Full Plan
+
+See `docs/plans/2026-06-09-003-refactor-workflow-owned-merge-full-migration-slices-plan.md`.