integration tests fixes

src/services/aiService.server.test.ts

@@ -7,6 +7,15 @@ import { AIService } from './aiService.server';
 // Explicitly unmock the service under test to ensure we import the real implementation.
 vi.unmock('./aiService.server');
 
+// Mock sharp, as it's a direct dependency of the service.
+const mockToBuffer = vi.fn();
+const mockExtract = vi.fn(() => ({ toBuffer: mockToBuffer }));
+const mockSharp = vi.fn(() => ({ extract: mockExtract }));
+vi.mock('sharp', () => ({
+  __esModule: true,
+  default: mockSharp,
+}));
+
 describe('AI Service (Server)', () => {
   // Create mock dependencies that will be injected into the service
   const mockAiClient = { generateContent: vi.fn() };
@@ -92,15 +101,6 @@ describe('AI Service (Server)', () => {
 
   describe('extractTextFromImageArea', () => {
     it('should call sharp to crop the image and call the AI with the correct prompt', async () => {
-      // Mock sharp for this specific test, as it's a direct dependency of the method.
-      const mockToBuffer = vi.fn();
-      const mockExtract = vi.fn(() => ({ toBuffer: mockToBuffer }));
-      const mockSharp = vi.fn(() => ({ extract: mockExtract }));
-      vi.mock('sharp', () => ({
-        __esModule: true,
-        default: mockSharp,
-      }));
-
       const imagePath = 'path/to/image.jpg';
       const cropArea = { x: 10, y: 20, width: 100, height: 50 };
       const extractionType = 'store_name';