fix(users): Correct the condition for verify_email flow in decision manger

[ThisIsMani]

Type of Change

• Bugfix
• New feature
• Enhancement
• Refactoring
• Dependency updates
• Documentation
• CI/CD

Description

• Currently decision manager is giving verify email flow for users who are already verified but not for users who are not verified. This should be other way around, so condition is negated.

Additional Changes

• This PR modifies the API contract
• This PR modifies the database schema
• This PR modifies application configuration/environment variables

Motivation and Context

Closes #4579.

How did you test it?

As of now, this is only testable in local env. I've removed TOTP from decision manager and directly went to verify email flow.
Previously verify email flow is coming for only verified users, after this change it is coming for only non-verified users.

curl --location 'http://localhost:8080/user/from_email' \
--header 'Content-Type: application/json' \
--data '{
    "token": "email token"
}'

If the user didn't verify their email, then the token_type in the response should be verify_email.

{
    "token": "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJ1c2VyX2lkIjoiMDYxNjE1YjAtZjI5Yi00NWIyLWJmNmItODczNTYyYWU1ODhlIiwicHVycG9zZSI6InRvdHAiLCJvcmlnaW4iOiJtYWdpY19saW5rIiwiZXhwIjoxNzE0ODExOTAwfQ.CDErXJ89a1o3ROyAKvm6TFW1drHDnlcqg43OoBQjY6A",
    "token_type": "verify_email"
}

If the user is already verified, then the user should get other flow which is not verify_email.

{
    "token": "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJ1c2VyX2lkIjoiMDYxNjE1YjAtZjI5Yi00NWIyLWJmNmItODczNTYyYWU1ODhlIiwicHVycG9zZSI6InRvdHAiLCJvcmlnaW4iOiJtYWdpY19saW5rIiwiZXhwIjoxNzE0ODExOTAwfQ.CDErXJ89a1o3ROyAKvm6TFW1drHDnlcqg43OoBQjY6A",
    "token_type": "user_info"
}

Checklist

• I formatted the code cargo +nightly fmt --all
• I addressed lints thrown by cargo clippy
• I reviewed the submitted code
• I added unit tests for my changes where possible