feat: update README.md to provide comprehensive documentation for LangGraph.js email processing system

feat: add graph visualization function to generate and save PNG representation

feat: integrate email processing system with UI components

feat: implement email state graph with conditional routing for spam classification

feat: refactor EmailState to use Annotation for improved state management

feat: update dev script to use tsx for improved TypeScript execution

feat: remove routeEmail function as part of code refactoring

feat: add routeEmail function to classify emails as spam or legitimate

feat: update package.json and package-lock.json to include new dependencies

feat: add routeEmail function to classify emails as spam or legitimate

feat: implement notifyOwner function to log email notifications and display details in development

feat: implement draftResponse function to generate email replies based on context

feat: add .gitignore file to exclude logs, runtime data, and build outputs

feat: add centralized logger implementation with context support

feat: replace winston logger with context logger for readEmail function