[feat] add user and add event

backend/project/api/users/urls.py

@@ -0,0 +1,17 @@
+from django.urls import path
+
+from api.users.views import (
+    RegisterUsersFromExcelView,
+    RegisterUserView,
+)
+
+app_name = "users"
+
+urlpatterns = [
+    path("register/<event_id>/", RegisterUserView.as_view(), name="register"),
+    path(
+        "upload/excel/<event_id>/",
+        RegisterUsersFromExcelView.as_view(),
+        name="excel-upload",
+    ),
+]