Refactor code structure for improved readability and maintainability

packages/core-api/src/observability/noop.adapter.ts

@@ -0,0 +1,17 @@
+import type { IObservabilityAdapter } from './types';
+
+/**
+ * No-Op Observability Adapter.
+ *
+ * Default adapter when no telemetry is configured.
+ * All methods are empty — V8's TurboFan JIT compiler will inline
+ * and dead-code-eliminate these calls during optimization,
+ * resulting in effectively ZERO runtime overhead.
+ *
+ * Used by apps that don't need APM (e.g., `apps/landing`).
+ */
+export const noopObservabilityAdapter: IObservabilityAdapter = {
+  onRequestStart() {},
+  onRequestEnd() {},
+  onRequestError() {},
+};