restructured libs to be more aligned with core components

libs/core/event-bus/src/index.ts

@@ -0,0 +1,13 @@
+import { EventBus } from './event-bus';
+import type { EventBusConfig } from './types';
+
+/**
+ * Create a new event bus instance
+ */
+export function createEventBus(config: EventBusConfig): EventBus {
+  return new EventBus(config);
+}
+
+// Re-export everything
+export { EventBus } from './event-bus';
+export * from './types';