Support LanceDB for simpler setup (like kilo-code)

[longcuxit]

Is your feature request related to a problem? Please describe.
Yes. Every time I open the Agent, I have to manually start the Qdrant server. Both the installation and usage processes are currently very complicated and frustrating.

Describe the solution you'd like
I would like to avoid having to restart the Qdrant Server every time I open VS Code. The process should be more automated or seamless.

Describe alternatives you've considered
Add an alternative vector database option (like LanceDB), similar to how kilo-code handles it—using static file storage for quick and easy setup.

Additional context

[Proof-of-Ineffective-Input]

Now there's semble, which is simpler.