Test graph search with:

curl -X 'POST' \                   
  'http://localhost:3000/api/gsearch' \
  -H 'accept: application/json; charset=utf-8' \
  -H 'Content-Type: application/json; charset=utf-8' \
  -d '{
  "search_term": "project evaluation project strategy",
  "skip": 0,
  "limit": 0,
  "role": "project manager"
}'

This is a rewrite of Python-based API in Rust

#TODO: [] make articles JSON? [] copy config from Python [] turn pre-processing articles sentences to edge into crate [] add redis sessions [] add mark nodes API