Connect with scanning services with SSE and stream SSE responses to the frontend via exposing through the API

[lakshith-403]

[lakshith-403]

At the moment scanning is mocked from here: https://github.com/Xployt-ai/xployt-main-server/blob/main/app/services/scan_service.py

Endpoints are defined here: https://github.com/Xployt-ai/xployt-main-server/blob/main/app/api/v1/endpoints/scans.py

I need to add one working scanning backend written in this repo: https://github.com/Xployt-ai/xployt-L2

Have to check how there API works.

Communicate the status with SSE. Defined in this commit: Xployt-ai/xployt-L2@96400e7

And then communicate the status to the frontend through SSE