fix: glob pattern test for Windows compatibility

Author: krikera

test/imageCompressor.test.js

@@ -143,7 +143,8 @@ describe('Image Compressor', function () {
     });
 
     it('should batch compress using glob pattern', async () => {
-      const globPattern = path.join(inputDir, '*.jpg');
+      // Use forward slashes for glob patterns (works cross-platform)
+      const globPattern = inputDir.replace(/\\/g, '/') + '/*.jpg';
       const batchOutputDir = path.join(outputDir, 'glob');
 
       const result = await compressImages(