feat: Implement routines feature with CRUD operations and child assignment

- Add backend routines management with add, get, update, delete, and list functionalities.
- Create models for Routine, RoutineItem, RoutineSchedule, and RoutineExtension.
- Develop event types for routine confirmation and modification.
- Implement frontend components for routine assignment, confirmation dialog, and routine management views.
- Add unit tests for routine API and integration tests for routine CRUD flow.
- Create end-to-end test plan for routines feature covering parent and child interactions.

backend/db/db.py

@@ -69,6 +69,10 @@ class LockedTable:
 
 child_path = os.path.join(base_dir, 'children.json')
 task_path = os.path.join(base_dir, 'tasks.json')
+routine_path = os.path.join(base_dir, 'routines.json')
+routine_items_path = os.path.join(base_dir, 'routine_items.json')
+routine_schedules_path = os.path.join(base_dir, 'routine_schedules.json')
+routine_extensions_path = os.path.join(base_dir, 'routine_extensions.json')
 reward_path = os.path.join(base_dir, 'rewards.json')
 image_path = os.path.join(base_dir, 'images.json')
 pending_reward_path = os.path.join(base_dir, 'pending_rewards.json')
@@ -85,6 +89,10 @@ digest_action_tokens_path = os.path.join(base_dir, 'digest_action_tokens.json')
 # Use separate TinyDB instances/files for each collection
 _child_db = TinyDB(child_path, indent=2)
 _task_db = TinyDB(task_path, indent=2)
+_routine_db = TinyDB(routine_path, indent=2)
+_routine_items_db = TinyDB(routine_items_path, indent=2)
+_routine_schedules_db = TinyDB(routine_schedules_path, indent=2)
+_routine_extensions_db = TinyDB(routine_extensions_path, indent=2)
 _reward_db = TinyDB(reward_path, indent=2)
 _image_db = TinyDB(image_path, indent=2)
 _pending_rewards_db = TinyDB(pending_reward_path, indent=2)
@@ -101,6 +109,10 @@ _digest_action_tokens_db = TinyDB(digest_action_tokens_path, indent=2)
 # Expose table objects wrapped with locking
 child_db = LockedTable(_child_db)
 task_db = LockedTable(_task_db)
+routine_db = LockedTable(_routine_db)
+routine_items_db = LockedTable(_routine_items_db)
+routine_schedules_db = LockedTable(_routine_schedules_db)
+routine_extensions_db = LockedTable(_routine_extensions_db)
 reward_db = LockedTable(_reward_db)
 image_db = LockedTable(_image_db)
 pending_reward_db = LockedTable(_pending_rewards_db)
@@ -117,6 +129,10 @@ digest_action_tokens_db = LockedTable(_digest_action_tokens_db)
 if os.environ.get('DB_ENV', 'prod') == 'test':
     child_db.truncate()
     task_db.truncate()
+    routine_db.truncate()
+    routine_items_db.truncate()
+    routine_schedules_db.truncate()
+    routine_extensions_db.truncate()
     reward_db.truncate()
     image_db.truncate()
     pending_reward_db.truncate()