wangziqi fb8c897b4f fix: disable import button when roles not loaded (null defaultTeacherRoleId guard)

2026-07-09 11:32:01 +08:00

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admin

fix: disable import button when roles not loaded (null defaultTeacherRoleId guard)

2026-07-09 11:32:01 +08:00

server

fix: add DTO validation, transactional imports, role-not-found handling, null role guard

2026-07-09 11:28:11 +08:00