git:20260911.75c7edc to git:20260912.fc2c5d5

1 added, 1 removed. Audit A to A.

- `docs/architecture.md`: how orchflows fits together, where anything belongs. `docs/home.md`: paths, setup, update. `docs/hosts.md`: isolation, plugin registration. `docs/history.md`: agent transcripts.

+ `docs/architecture.md`: contracts and file placement. `guidance/<domain>.md`: preferences for making or reviewing domain work; `guidance/orchflows.md` for authoring workflows, guidance or libraries. `docs/home.md`: paths, setup, update. `docs/hosts.md`: isolation and plugin registration. `docs/history.md`: agent transcripts.