【Feature Request】 Add Long Form Podcast Support

[MODSetter]

Enabling Podcast Agent to generate long form podcasts using/inspired from this technique https://www.tamingllms.com/notebooks/input.html#generating-long-form-content

This will be very useful for processing long documents and generate long podcasts when I add that feature.

I expect to do this myself but if anyone interested in LangGraph and wana play here is the starting code:

https://github.com/MODSetter/SurfSense/tree/main/surfsense_backend/app/agents/podcaster