feat: submission confirmation and payment locking

claims/urls.py

@@ -6,12 +6,14 @@ from .views import (
     MyClaimsView,
     SubmitClaimView,
     UserManagementView,
+    SubmitClaimSuccessView,
 )
 
 app_name = "claims"
 
 urlpatterns = [
     path("new/", SubmitClaimView.as_view(), name="submit"),
+    path("submitted/", SubmitClaimSuccessView.as_view(), name="submit-success"),
     path("admin/", ClaimAdminListView.as_view(), name="admin-list"),
     path("export/", ClaimExportMenuView.as_view(), name="export"),
     path("mine/", MyClaimsView.as_view(), name="my-claims"),