Introduces StatCard ViewComponent with configurable stat display
Adds demo mode banner to application layout
Refactors dashboard stats to use dynamic component rendering
Improves dashboard presentation and user experience
Introduces comprehensive user authentication flow with plan selection and registration
Includes:
- Pricing page with plan details and selection
- Payment page with plan summary and card information
- Signup page for different plan tiers
- Shared authentication layout and design system improvements
Enhances user onboarding experience with clear plan information and streamlined signup process
