fix

server/internal/handlers/handlers_learning.go

@@ -752,6 +752,12 @@ func ReportViolationHandler(db *gorm.DB) fiber.Handler {
 			return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{"error": "studentRkId and kind are required"})
 		}
 
+		monitorMode := strings.TrimSpace(req.MonitorMode)
+		// Chỉ lưu khi đang thi hoặc đang học — ngoài giờ / chưa cấu hình bỏ qua
+		if monitorMode != "exam" && monitorMode != "learning" {
+			return c.JSON(fiber.Map{"ok": true, "skipped": true, "reason": "not_in_exam_or_learning"})
+		}
+
 		kind := strings.ToLower(strings.TrimSpace(req.Kind))
 		reason := strings.TrimSpace(req.Reason)
 		if reason == "" {
@@ -768,7 +774,7 @@ func ReportViolationHandler(db *gorm.DB) fiber.Handler {
 			ClassRkID:   classID,
 			Kind:        kind,
 			Reason:      reason,
-			MonitorMode: strings.TrimSpace(req.MonitorMode),
+			MonitorMode: monitorMode,
 			ClientAt:    clientAt,
 		}
 		if err := db.Create(&row).Error; err != nil {