* feat: Add new API handlers for user, project, and task management; update package dependencies
* feat: Update .gitignore, add Lambda layer configuration, and refactor DynamoDB handlers to use AWS SDK v3
* feat: Update serverless configuration and refactor API handlers to improve error handling and response structure
* feat: Add Cognito user pool name parameter and update API handlers to include CORS headers
* feat: Update task and project ID formats, add populateSeedData function, and enhance user ID handling
* feat: Update image source paths to use S3 public URL for profile and task attachments