fix(api): make CreatorUserRole accept both end-user and end_user (#33638)

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

api/tests/unit_tests/models/test_enums_creator_user_role.py

@@ -0,0 +1,19 @@
+import pytest
+
+from models.enums import CreatorUserRole
+
+
+def test_creator_user_role_missing_maps_hyphen_to_enum():
+    # given an alias with hyphen
+    value = "end-user"
+
+    # when converting to enum (invokes StrEnum._missing_ override)
+    role = CreatorUserRole(value)
+
+    # then it should map to END_USER
+    assert role is CreatorUserRole.END_USER
+
+
+def test_creator_user_role_missing_raises_for_unknown():
+    with pytest.raises(ValueError):
+        CreatorUserRole("unknown")