Add TimeSelector and ScheduleModal components with tests

- Implemented TimeSelector component for selecting time with AM/PM toggle and minute/hour increment/decrement functionality.
- Created ScheduleModal component for scheduling chores with options for specific days or intervals.
- Added utility functions for scheduling logic in scheduleUtils.ts.
- Developed comprehensive tests for TimeSelector and scheduleUtils functions to ensure correct behavior.

backend/api/child_api.py

@@ -28,6 +28,9 @@ from models.tracking_event import TrackingEvent
 from api.utils import get_validated_user_id
 from utils.tracking_logger import log_tracking_event
 from collections import defaultdict
+from db.chore_schedules import get_schedule
+from db.task_extensions import get_extension
+from datetime import date as date_type
 import logging
 
 child_api = Blueprint('child_api', __name__)
@@ -273,6 +276,18 @@ def list_child_tasks(id):
         ct_dict = ct.to_dict()
         if custom_value is not None:
             ct_dict['custom_value'] = custom_value
+
+        # Attach schedule and most recent extension_date (client does all time math)
+        if task.get('is_good'):
+            schedule = get_schedule(id, tid)
+            ct_dict['schedule'] = schedule.to_dict() if schedule else None
+            today_str = date_type.today().isoformat()
+            ext = get_extension(id, tid, today_str)
+            ct_dict['extension_date'] = ext.date if ext else None
+        else:
+            ct_dict['schedule'] = None
+            ct_dict['extension_date'] = None
+
         child_tasks.append(ct_dict)
 
     return jsonify({'tasks': child_tasks}), 200