feat: add services package

packages/services/src/Domain/Service/ServiceInterface.ts

@@ -0,0 +1,12 @@
+import { ApplicationStage } from '../Application/ApplicationStage'
+import { ServiceDiagnostics } from '../Diagnostics/ServiceDiagnostics'
+import { EventObserver } from '../Event/EventObserver'
+
+export interface ServiceInterface<E, D> extends ServiceDiagnostics {
+  loggingEnabled: boolean
+  addEventObserver(observer: EventObserver<E, D>): () => void
+  blockDeinit(): Promise<void>
+  deinit(): void
+  handleApplicationStage(stage: ApplicationStage): Promise<void>
+  log(message: string, ...args: unknown[]): void
+}