Fixes: 1) Remove redundant imports from admin.py;
Extra: 1) Update inline classes to inherit from TabularInline; 2) Add unfold.contrib modules to INSTALLED_APPS; 3) Reorder imports in admin.py for consistency.
Fixes: 1) Remove deprecated Jazzmin configuration and replace with unfold dependencies; 2) Update DRF API title to use new PROJECT_NAME; 3) Fix import order and remove unused imports in core/viewsets.py;
Extra: 1) Add PROJECT_NAME to base settings; 2) Update INSTALLED_APPS to include unfold-related apps; 3) Clean up unused config references.
