Add is_urgent field to Reminder model

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: scottlovegrove

tests/data/test_defaults.py

@@ -274,6 +274,7 @@ class PaginatedItems(TypedDict):
     "notify_uid": "34567",
     "type": "relative",
     "is_deleted": False,
+    "is_urgent": False,
     "minute_offset": 30,
     "due": DEFAULT_DUE_RESPONSE,
     "service": "push",

todoist_api_python/models.py

@@ -233,6 +233,7 @@ class _(JSONPyWizard.Meta):  # noqa:N801
     notify_uid: str
     type: ReminderType
     is_deleted: bool
+    is_urgent: bool
 
     minute_offset: int | None = None
     due: Due | None = None