Optional ReadonlydevOptional ReadonlydiagnosticsDiagnostics level for exportable debug event refs (used by DevtoolsHub and debug sinks that normalize events).
Equivalent to composing Debug.diagnosticsLevel(level) with Debug.layer(...).
Optional ReadonlyenableReserved for future use: emit key events into metrics in prod.
Optional ReadonlymodeOptional ReadonlyverboseReserved for future use: enable high-noise action/state logs in dev.
In dev mode, choose what to print to the browser console: