Implemented the output from the database by nickname {"username": "username", "first_name": "first_name", "last_name": "last_name", "email": "username@basealt.ru"}

For am_responsible, pam_responsible and issue_author, I added data from bitrix by nickname. Saved it to the database and linked it to the created task.

Added filters for am_responsible, pam_responsible, but they work separately from other filters.