Add "doc_source" to Evenstate and edit the tables structure in quester

[ngupta10]

Need to tie source information in Vector/Graph events via file source with protocol like s3:// gcs:// drive:// file:.// etc. and need to update our storage schema to have that information

[saraswatpuneet]

https://github.com/Querent-ai/quester/blob/f8260d8154cd346a17dab54eb641ba80bc4e1e50/quester/querent/src/lib.rs#L91

You can check all the source and how they look