Release v1.0 - Complete AI-First SaaS Starter Kit

🎉 Major Release Highlights:

✨ Core Features:
- AI Assistant Chat with Mastra integration and MinIO-backed file access
- Complete billing system with Polar.sh integration (subscriptions + credits)
- Authentication with Better Auth (email, GitHub, Google OAuth)
- Modern dashboard with multiple templates and workflows
- Document management with file upload and AI processing

🛠️ Technical Stack:
- TanStack Start RC1 (latest full-stack React framework)
- TypeScript for full type safety
- PostgreSQL with Drizzle ORM
- Modern UI with shadcn/ui and Tailwind CSS v4
- Comprehensive testing with Vitest

📚 Documentation:
- Complete setup guides for all features
- Polar.sh payment integration documentation
- Mastra AI assistant setup guide
- TanStack Start RC1 upgrade documentation

🔧 Developer Experience:
- Cursor rules and AI-optimized patterns
- Hot reload development server
- Docker-based local development
- Custom CLI tools for project management

This release marks the project as production-ready with all major features implemented and thoroughly documented.