Do you need to file an issue?

• I have searched the existing issues and this feature is not already filed.
• My model is hosted on OpenAI or Azure. If not, please look at the "model providers" issue and don't file a new one here.
• I believe this is a legitimate feature request, not just a question. If this is a question, please use the Discussions area.

Is your feature request related to a problem? Please describe.

Refactor the VectorStoreFactory class to follow a similar style as the StorageFactory class and use the register functionality to register each custom vector store implementation.

Describe the solution you'd like

No response

Additional context

No response