Interview management dedicated page for staff

[BAWES]

Dedicated interview management page for staff users to schedule, view, and manage candidate interviews.

Internal tracking: STU-109

[BAWES]

Triage update: The interview management page for staff is in active development. PR #31 ([STU-134] Interview management page for staff) is under review and adds with list and detail views, status management, and keyboard shortcuts.

Internal tracking: STU-109 is marked done (foundational work), with additional interview features in flight via PR #31.

When PR #31 is merged, this issue will be closed.