added ops api

add classification codes when retrieving patent data

Implement arXiv backend

Make scrapping async

Update project doc

Add scholar endpoint + rework

Remove useless endpoint

Reorganize endpoints

Extract field, background and description

Deploy scrap endpoints

Fix log format

Fix backend status endpoint returning state linfo

Add bing search backend

Add search_duck + search route

Fix search_patents route not respecting number of results per query

Fix wrong python executbale

Initial commit