## Summary
- add a project-scoped live API route for updating individual task
checklist steps
- add an atomic live API route for resolving stale durable wedge
episodes
- prevent operator repair tooling from opening a second embedded store
that can diverge from the running dashboard backend
## Why
Legacy graph-native workflow runs can retain successful
`workflowStepResults` while their narrative checklist remains at 0/N.
The existing `fn task update` fallback may open a separate embedded
store, producing split-brain writes that do not accumulate in the live
dashboard backend. There was also no API surface for the existing atomic
wedge-episode resolver.
## Verification
- `pnpm exec vitest run
src/routes/__tests__/register-task-workflow-routes.step-update.test.ts`
— 5/5 passing
- `pnpm build` in `packages/dashboard` — passing
- full managed runtime workspace build — passing
- deployed to the managed local runtime and used to reconcile six legacy
review-deadlock tasks
- live board audit: zero `in-review-stall-deadlock` paused reasons
- exact local and Tailscale dashboard roots: HTTP 200 with 16,926-byte
bodies
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Added live API endpoints to update individual task checklist steps
with validation (step index and allowed status values).
* Added an endpoint to reconcile/resolve stale task “wedge” episodes,
resolving only the matching active episode and returning conflicts on
mismatches.
* **Tests**
* Expanded route tests for step updates and wedge resolution, including
consistent 404 behavior for soft-deleted and missing tasks, plus
conflict and invalid-input cases.
* Expanded PostgreSQL coverage for wedge resolution persistence and
concurrent episode replacement scenarios.
* **Bug Fixes**
* Improved task-lookup error handling so soft-deleted tasks are
consistently treated as “not found” (HTTP 404).
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
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