fix(back-end): file error handling

backend/src/main/java/com/printcalculator/service/SlicerService.java

@@ -66,7 +66,6 @@ public class SlicerService {
             // 3. Build Command
             List<String> command = new ArrayList<>();
             command.add(slicerPath);
-            command.add("--headless");
             
             // Output directory
             command.add("--outputdir");

backend/src/test/java/com/printcalculator/ManualSessionPersistenceTest.java

@@ -17,7 +17,7 @@ import com.printcalculator.entity.PrinterMachine;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
-import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.test.context.bean.override.mockito.MockitoBean;
 import org.springframework.mock.web.MockMultipartFile;
 import org.springframework.http.ResponseEntity;
 import org.springframework.transaction.annotation.Transactional;
@@ -45,25 +45,25 @@ public class ManualSessionPersistenceTest {
     @Autowired
     private QuoteSessionController controller;
 
-    @MockBean
+    @MockitoBean
     private QuoteSessionRepository sessionRepo;
 
-    @MockBean
+    @MockitoBean
     private QuoteLineItemRepository lineItemRepo; // Mock this too
 
-    @MockBean
+    @MockitoBean
     private SlicerService slicerService;
 
-    @MockBean
+    @MockitoBean
     private StorageService storageService;
     
-    @MockBean
+    @MockitoBean
     private QuoteCalculator quoteCalculator;
     
-    @MockBean
+    @MockitoBean
     private PrinterMachineRepository machineRepo;
     
-    @MockBean
+    @MockitoBean
     private com.printcalculator.repository.PricingPolicyRepository pricingRepo; // Add this if needed by controller
 
     @Test

backend/src/test/java/com/printcalculator/controller/OrderIntegrationTest.java

@@ -31,7 +31,7 @@ import static org.junit.jupiter.api.Assertions.*;
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
 
-import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.test.context.bean.override.mockito.MockitoBean;
 import com.printcalculator.service.ClamAVService;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.when;
@@ -48,7 +48,7 @@ import static org.mockito.Mockito.when;
 })
 class OrderIntegrationTest {
 
-    @MockBean
+    @MockitoBean
     private ClamAVService clamAVService;
 
     @Autowired