## What does this PR do?
- Redesigns and streamlines the onboarding flow for personal, team, and organization accounts
- Consolidates shared components and improves code organization
- Adds browser preview for better user experience during onboarding
- Simplifies the personal onboarding flow by removing the video integration step
- Enhances team onboarding with CSV upload functionality
## Visual Demo (For contributors especially)
#### Image Demo:
- The PR adds a new browser preview component that shows users how their profile/team will look during onboarding
- Redesigned UI with a more consistent layout across all onboarding steps
- Improved mobile responsiveness with better component organization
## Mandatory Tasks (DO NOT REMOVE)
- [x] I have self-reviewed the code.
- [x] I have updated the developer docs in /docs if this PR makes changes that would require a documentation change. If N/A, write N/A here and check the checkbox.
- [x] I confirm automated tests are in place that prove my fix is effective or that my feature works.
## How should this be tested?
1. Test the complete onboarding flow for personal accounts:
- Start at `/onboarding/getting-started`
- Proceed through personal details and calendar setup
- Verify the flow completes successfully
2. Test the team onboarding flow:
- Start at `/onboarding/getting-started` and select team
- Complete team details
- Test the invite options including CSV upload
- Verify team creation works correctly
3. Test the organization onboarding flow:
- Start at `/onboarding/getting-started` and select organization
- Complete organization details and branding
- Test member invitations
- Verify organization creation works correctly
4. Verify browser preview functionality:
- Check that the preview updates in real-time as you enter information
- Confirm it displays correctly on different screen sizes
## Checklist
- I have read the [contributing guide](https://github.com/calcom/cal.com/blob/main/CONTRIBUTING.md)
- My code follows the style guidelines of this project
- I have commented my code, particularly in hard-to-understand areas
- I have checked if my changes generate no new warnings
## What does this PR do?
This PR is stacked on https://github.com/calcom/cal.com/pull/24299 this adds the v3 flow for onboarding with teams.
<!-- This is an auto-generated description by cubic. -->
---
## Summary by cubic
Adds the v3 team onboarding flow with Details, Brand, and Invite steps, including slug validation, branding, and member invites. Updates routing to support the Team plan and creates teams with Stripe checkout when needed.
- **New Features**
- Team Details: name and slug with async availability check and URL preview.
- Team Brand: hex color picker and logo upload with live preview.
- Team Invite: add/remove emails, invite role toggle (Member/Admin), and form validation.
- State: adds teamDetails, teamBrand, and teamInvites to the onboarding store with actions.
- Creation: new useCreateTeam hook; redirects to Stripe if checkout URL is returned, or to Getting Started on success.
- Routing/Auth: protected team pages (details, brand, invite) and updates plan selection to route to /onboarding/teams.
<!-- End of auto-generated description by cubic. -->
sean-brydon