BREAKING CHANGE(core): Refactor to v3: introduce modular core/domain architecture, plugin system, observability and strict TypeScript configuration; remove legacy classes

ts/core/connection/index.ts

@@ -0,0 +1,15 @@
+/**
+ * Connection management for Elasticsearch client
+ *
+ * This module provides:
+ * - Connection pooling and lifecycle management
+ * - Health monitoring with periodic checks
+ * - Circuit breaker pattern for fault tolerance
+ * - Automatic reconnection
+ *
+ * @packageDocumentation
+ */
+
+export * from './health-check.js';
+export * from './circuit-breaker.js';
+export * from './connection-manager.js';