Six-reviewer doc review reshaped two foundational decisions:
- Results model: graph writes the existing task.workflowStepResults field
keyed by node id (no new table) — avoids upgrade data-loss for in-review
tasks and collapses U2/U3. Sibling-table spike reverted.
- Migration: reconcile with the existing migration-109 fragment scheme
instead of infeasible node-injection into read-only built-in workflows.
Also folds in: store-fallback fail-closed (legacy execute calls not all dead),
watchdog re-entry contract, plugin-row migration from persisted fields,
full progress-bar render-state spec, and circular-dependency fix.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
12a0b24fe7