Добавил формы создания и пофиксил баг с пользователями

dbapp/mainapp/urls.py

@@ -41,6 +41,7 @@ from .views import (
     ShowSourceWithPointsMapView,
     ShowSourceAveragingStepsMapView,
     SourceListView,
+    SourceCreateView,
     SourceUpdateView,
     SourceDeleteView,
     SourceObjItemsAPIView,
@@ -64,6 +65,7 @@ urlpatterns = [
     path('home/', RedirectView.as_view(pattern_name='mainapp:source_list', permanent=True), name='home_redirect'),
     # Keep /sources/ as an alias (Requirement 1.2)
     path('sources/', SourceListView.as_view(), name='source_list'),
+    path('source/create/', SourceCreateView.as_view(), name='source_create'),
     path('source/<int:pk>/edit/', SourceUpdateView.as_view(), name='source_update'),
     path('source/<int:pk>/delete/', SourceDeleteView.as_view(), name='source_delete'),
     path('delete-selected-sources/', DeleteSelectedSourcesView.as_view(), name='delete_selected_sources'),