- Added `get_validated_user_id` utility function to validate user authentication across multiple APIs.
- Updated image upload, request, and listing endpoints to ensure user ownership and proper error handling.
- Enhanced reward management endpoints to include user validation and ownership checks.
- Modified task management endpoints to enforce user authentication and ownership verification.
- Updated models to include `user_id` for images, rewards, tasks, and children to track ownership.
- Implemented frontend changes to ensure UI reflects the ownership of tasks and rewards.
- Added a new feature specification to prevent deletion of system tasks and rewards.
- Introduced a comprehensive instructions document for the Reward project, outlining architecture, data flow, key patterns, and developer workflows.
- Enhanced logging in the child API to track points and reward costs, improving error handling for insufficient points.
- Updated Vue components to reflect changes in reward handling and improve user experience with pending rewards.
