- Implement ElasticsearchClient with full sync/async operations
- Add ElasticsearchConfig with connection and embedding options
- Create factory pattern following ChromaDB/Qdrant conventions
- Add comprehensive test suite with 26 passing tests (100% coverage)
- Support both sync and async Elasticsearch operations
- Include proper error handling and edge case coverage
- Update type system and factory to support Elasticsearch provider
- Follow existing RAG patterns for consistency
Resolves#3404
Co-Authored-By: João <joao@crewai.com>
