refactor: address code review comments

Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>

app/api/url_upload.py

@@ -200,7 +200,9 @@ async def process_url(request: URLUploadRequest):
         safe_filename = "download"
 
     # Download file with security measures
-    target_path = None  # Initialize to None for cleanup in exception handlers
+    # Initialize target_path to None to prevent UnboundLocalError in exception handlers
+    # that may execute before target_path is assigned during error cases
+    target_path = None
     try:
         logger.info(f"Downloading file from URL: {url}")
 

frontend/templates/upload.html

@@ -229,11 +229,8 @@
   }
 
   function formatBytes(bytes) {
-    if (bytes === 0) return "0 Bytes";
-    const k = 1024;
-    const sizes = ["Bytes", "KB", "MB", "GB"];
-    const i = Math.floor(Math.log(bytes) / Math.log(k));
-    return Math.round(bytes / Math.pow(k, i) * 100) / 100 + " " + sizes[i];
+    // Reuse the existing formatFileSize function from upload.js
+    return formatFileSize(bytes);
   }
 </script>
 {% endblock %}