небольшие правки

makefile

@@ -67,8 +67,15 @@ define measure_time
 	$(2); \
 	end=$$(date +%s); \
 	duration=$$((end - start)); \
-	echo "$(1): $$duration сек" >> $(TIMING_FILE); \
-	echo "$(GREEN)✓ $(1) завершён за $$duration сек$(NC)"
+	if [ $$duration -ge 60 ]; then \
+		min=$$((duration / 60)); \
+		sec=$$((duration % 60)); \
+		time_str="$${min}m $${sec}s"; \
+	else \
+		time_str="$${duration}s"; \
+	fi; \
+	echo "$(1): $$time_str" >> $(TIMING_FILE); \
+	echo "$(GREEN)✓ $(1) завершён за $$time_str$(NC)"
 endef
 
 define print_timing_summary