Added uploader for data import
Started parsing process
Imported lines: parsing level 1
Started parsing level 2
Auto matching shop and user
Ongoing AJAX operation submission
Experimenting logs
Created custom log service and used it in Form Handler for debugging
Data import fully working in AJAX
Trying to check for duplicate before creating operation
UniqueEntity on operation
Returning error details in AJAX when duplicate operation
Removing duplicates from import lists
Created ImportedLine entity
Creating ProcessedLine on Operation creation attempts
Checking if ProcessedLine exists before showing import line