Show warning when user has no Duo code review access

Sincheol (David) Kimrequested to merge
536722-handle-scenario-where-users-don-t-have-a-duo-seat-rerequest-review into master

What does this MR do and why?

Show warning when user has no Duo code review access.

References

#536722 (closed)

Screenshots or screen recordings

Screenshot_2025-05-09_at_6.02.50_pm

How to set up and validate locally

  1. Create an MR with a user who has DCR access
  2. Log in as another user who does not have a DCR access
  3. Click Request Review button on the sidebar should display the error message and should not trigger a review

MR acceptance checklist

Evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.

Related to #536722 (closed)

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