NestJS OpenSearch Module

The `nestjs-opensearch` package provides a dedicated module for integrating OpenSearch with the NestJS framework. It simplifies connecting to OpenSearch clusters, offering configurations for single, multiple, and asynchronously provisioned clients. The current stable version is 1.4.1, which includes support for NestJS v11 and OpenSearch client v3. Releases tend to align with major NestJS and `@opensearch-project/opensearch` peer dependency updates to maintain compatibility. Its key differentiators include leveraging NestJS's declarative module structure, providing robust dependency injection for OpenSearch clients (both default and named), and supporting both synchronous and asynchronous configuration patterns, including `useFactory` and `useClass` options. This design allows for flexible integration within various NestJS application architectures, adhering to the framework's modularity and inversion of control principles.