## What does this PR do?
Currently we load /event-types for a few seconds while the onboarding hook catches up. This adds that logic to the serverside and not just client side to ensure onboarding is triggered
Adds server-side onboarding redirect checks to prevent users from accessing event types pages before completing onboarding. This implementation:
- Creates a new `checkOnboardingRedirect` utility function in a dedicated file
- Applies the redirect check on both the root page and event-types page
- Optimizes performance by using organizationId from session when available
- Handles email verification requirements before redirecting to onboarding
- Supports both legacy and v3 onboarding paths based on feature flags
## How should this be tested?
- Create a new user account that hasn't completed onboarding
- Attempt to access the root page or event-types page directly
- Verify you're redirected to the appropriate onboarding flow
- Test with email verification feature flag enabled/disabled
- Test with onboarding-v3 feature flag enabled/disabled
- Verify users who have completed onboarding can access event-types normally
- Verify organization users aren't redirected to onboarding
## Video Demo
Before:
[CleanShot 2025-10-30 at 10.54.41.mp4 <span class="graphite__hidden">(uploaded via Graphite)</span> <img class="graphite__hidden" src="https://app.graphite.dev/user-attachments/thumbnails/8282decc-a00d-4bc8-9215-fe1c4809fd8f.mp4" />](https://app.graphite.dev/user-attachments/video/8282decc-a00d-4bc8-9215-fe1c4809fd8f.mp4)
After
## [CleanShot 2025-10-30 at 10.54.06.mp4 <span class="graphite__hidden">(uploaded via Graphite)</span> <img class="graphite__hidden" src="https://app.graphite.dev/user-attachments/thumbnails/2acc7601-6c8c-496a-af4d-08dadef9aa2d.mp4" />](https://app.graphite.dev/user-attachments/video/2acc7601-6c8c-496a-af4d-08dadef9aa2d.mp4)
## Checklist
- [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
- [x] I confirm automated tests are in place that prove my fix is effective or that my feature works
