feat(fullstack): add upload progress tracking and interpolated files list

Merge all perfectly synchronized full-stack fixes into testing branch

feat: Persist uploads/jobs and connect dynamic map bounds to Leaflet

refactor: Centralize frontend API client and implement modular service layer

fixed some errors

worked on integration (partial errors)

worked on some modules

resolved some errors

changed some things in frontend

solving git conflicts

backend code done and now rectifying frontend

renamed satellite-interpolation-app to frontend