Add IBM Db2 Vector Search Tool for semantic retrieval workflows

[PawanThakurIBM]

Feature Area

Integration with external tools

Is your feature request related to an existing bug? Please link it here.

NA

Describe the solution you'd like

I would like to add a Db2 Vector Search Tool for CrewAI tools to enable semantic/vector similarity search workflows using Db2 native vector capabilities.

The tool would support:

• vector similarity search
• configurable distance metrics
• metadata filtering
• configurable embedding models
• optional custom embedding functions
• standardized JSON retrieval responses

The implementation would follow the existing CrewAI tools architecture and provide a consistent developer experience for retrieval workflows using Db2 as a vector store.

Describe alternatives you've considered

Currently, users need to implement custom Db2 retrieval logic manually outside the CrewAI tools ecosystem.

Adding native Db2 vector search support would simplify integration and provide a more standardized retrieval workflow experience.

Additional context

I have already started working on an initial implementation and opened a draft PR for early feedback and review:

#5885

Willingness to Contribute

Yes, I'd be happy to submit a pull request.