Reported by @hasty obsidian
Bug Report: Multiple accounts created due to onboarding confusion
`Steps to Reproduce`
- Visit https://sora.com/explore and create an account.
- Then, go to https://sora.chatgpt.com/onboarding and attempt to log in or proceed.
- The system prompts for a username, indicating a new account creation.
`Expected Result`
The system should recognize my existing account from https://sora.com/explore and allow me to log in without creating a new account.
`Actual Result`
The system prompts me to create a new account at https://sora.chatgpt.com/onboarding, resulting in two separate accounts.
`Environment`
Browser: Chrome