feat: add default_has_deadline to ChoreSchedule and update related components for deadline management

backend/api/chore_schedule_api.py

@@ -60,6 +60,7 @@ def set_chore_schedule(child_id, task_id):
             return jsonify({'error': 'day_configs must be a list', 'code': ErrorCodes.INVALID_VALUE}), 400
         default_hour = data.get('default_hour', 8)
         default_minute = data.get('default_minute', 0)
+        default_has_deadline = data.get('default_has_deadline', True)
         schedule = ChoreSchedule(
             child_id=child_id,
             task_id=task_id,
@@ -67,6 +68,7 @@ def set_chore_schedule(child_id, task_id):
             day_configs=day_configs,
             default_hour=default_hour,
             default_minute=default_minute,
+            default_has_deadline=default_has_deadline,
         )
     else:
         interval_days = data.get('interval_days', 2)

backend/models/chore_schedule.py

@@ -35,6 +35,7 @@ class ChoreSchedule(BaseModel):
     day_configs: list = field(default_factory=list)   # list of DayConfig dicts
     default_hour: int = 8    # master deadline hour for 'days' mode
     default_minute: int = 0  # master deadline minute for 'days' mode
+    default_has_deadline: bool = True  # False = 'Anytime', no expiry for 'days' mode
 
     # mode='interval' fields
     interval_days: int = 2              # 1–7
@@ -52,6 +53,7 @@ class ChoreSchedule(BaseModel):
             day_configs=d.get('day_configs', []),
             default_hour=d.get('default_hour', 8),
             default_minute=d.get('default_minute', 0),
+            default_has_deadline=d.get('default_has_deadline', True),
             interval_days=d.get('interval_days', 2),
             anchor_date=d.get('anchor_date', ''),
             interval_has_deadline=d.get('interval_has_deadline', True),
@@ -71,6 +73,7 @@ class ChoreSchedule(BaseModel):
             'day_configs': self.day_configs,
             'default_hour': self.default_hour,
             'default_minute': self.default_minute,
+            'default_has_deadline': self.default_has_deadline,
             'interval_days': self.interval_days,
             'anchor_date': self.anchor_date,
             'interval_has_deadline': self.interval_has_deadline,