Feature request: Add option for entity embedding in SimpleKGPipeline (vector attribute on nodes) #390
Description
It would be extremely valuable to add an option to SimpleKGPipeline to allow entity nodes (not just chunk nodes) to be created with a vector (embedding) attribute.
Some other open-source knowledge graph projects (e.g., mem0, graphiti, Microsoft GraphRag) store embeddings on every node created from a chunk. This allows vector search at the entity level, improving retrieval quality.
Please consider adding an option in SimpleKGPipeline to generate and store embeddings for each entity node automatically.