Add accessible mailboxes endpoint with privilege-based expanded access

Shipped

2026년 4월 2일 오후 7:04 UTC

Author

Kamo

Commit

fa3adb3

Add AccessibleMailboxService and GET /api/email/mailboxes/accessible endpoint that returns personal mailboxes, shared mailboxes, and privilege-gated access to department, job type, and all member mailboxes.