Redesign onboarding flow with interactive steps

[Nanle-code]

Description

Create an enhanced onboarding experience with interactive tutorials and guided steps for new users.

Requirements

• Step-by-step account creation flow
• Interactive wallet connection guide
• Feature introduction carousel
• Customizable dashboard setup wizard
• Skip/continue options
• Progress tracking

Acceptance Criteria

• Onboarding takes < 5 minutes
• 95% of new users complete flow
• Mobile and desktop versions work
• No blockers for experienced users