feat: implement comprehensive database integration with full user analytics tracking

feat: enhance diagram auto-healing with detailed feedback

feat: comprehensive UX improvements and repository cleanup

Implement enhanced error handling and explanation controls

Complete voice button implementation with proper positioning and functionality

Fix voice button positioning inside textarea

Fix voice button icon and functionality

Fix voice button positioning and styling

Implement voice input feature with Web Speech API

Implement Claude 4 Sonnet integration for JSON workflow generation

Add orange gradient 'Build It' button with shine effect

Improve workflow explanation to use first person and better design rationale

Add Vercel deployment configuration

Initial commit: Documentation and workflow planner tools