498a3e9b27
Key patterns: - Effect buffer (transactional side effects with rollback) - Soft assertions (log invariant violations, don't crash) - Type-safe state transitions (HSM with source validation) - Mutable vs immutable context (type-level access control) - Goroutine Handle (safe lifecycle, predates CockroachDB by 3.5y) - Dynamic config with generics (566 settings, namespace-scoped) - Composable predicates (filter algebra with flattening) - Persistence plugin registration (init pattern) - ShutdownOnce (CAS-based safe channel close)