System Overview
The component map and the core/plugin boundary
Domain & Plugin Model
The domain model, the plugin extension model, config lineage, and the cascade
Execution & Cost
Execution, snapshots, statuses, threshold enforcement, the reconciler, and cost
Integration & Auth
Engine integration, webhook auth, the auth model, and the API surfaces
Data Model, Diagrams & Reference
Glossary, invariants, ER diagrams, and auth diagrams — faithful reference pages