- tasks-model.ts: one pre-order node list for graph AND tree modes —
catalog walking, workflow-run attachment with member re-parenting and
synthesis, team enrichment, per-parent settled-leaf fold aggregates.
- tasks-graph-layout.ts: dependency-free tidy-tree layered layout
(bundle-purity: no graph library in the core bundle).
- api.ts: workflowsList/teamsView/teamsTaskCreate/teamsTaskUpdate with
the wire result types mirrored from the host routes.
- 11 unit tests across model derivation, edge classification, fold, and
layout geometry.
