Add routine management features for child and parent views

- Implemented routine child-mode flow tests to ensure proper functionality of routine assignment and task completion.
- Created notification tests for parent view to verify routine completion notifications for children.
- Developed ChildRoutineOverlay component for displaying routine tasks and handling user interactions.
- Added RoutineApproveDialog component for approving or rejecting completed routines.
- Created unit tests for ChildRoutineOverlay and RoutineEditView components to ensure correct behavior and rendering.
- Enhanced RoutineEditView with proper handling of task addition and form submission.

Co-authored-by: Copilot <copilot@github.com>

backend/api/digest_action_api.py

@@ -5,7 +5,7 @@ from tinydb import Query
 
 from utils.digest_token import validate_and_consume_token, validate_unsubscribe_token, peek_token
 from db.db import users_db
-from api.child_action_helpers import approve_chore, reject_chore, approve_reward_request, deny_reward
+from api.child_action_helpers import approve_chore, reject_chore, approve_reward_request, deny_reward, approve_routine, reject_routine
 from api.utils import get_validated_user_id
 
 digest_action_api = Blueprint('digest_action_api', __name__)
@@ -79,6 +79,10 @@ def execute_digest_action(token_id: str):
             approve_reward_request(user_id, token.child_id, token.entity_id)
         elif token.entity_type == 'reward' and token.action == 'deny':
             deny_reward(user_id, token.child_id, token.entity_id)
+        elif token.entity_type == 'routine' and token.action == 'approve':
+            approve_routine(user_id, token.child_id, token.entity_id)
+        elif token.entity_type == 'routine' and token.action == 'deny':
+            reject_routine(user_id, token.child_id, token.entity_id)
         else:
             return jsonify({'error': 'Unknown action', 'code': 'INVALID_ACTION'}), 400
     except Exception as e: