refactor frontend as now backend manage auto-enrollment logic
fix backend bug when saving schedule
Merge branch 'develop' into feature/fix_dialogue_schedule_moe_to_backend
Merge branch 'develop' into feature/fix_dialogue_schedule_moe_to_backend
fix backend validation before saving
upgrade backend
Merge branch 'develop' into feature/fix_dialogue_schedule_moe_to_backend
Merge branch 'feature/fix_dialogue_schedule_moe_to_backend' into develop