Fix API endpoint URL - remove /content suffix from file fetching

Author: tzacks-cl

src/components/DataFileSelector.tsx

@@ -83,7 +83,7 @@ function DataFileSelector({ onDataProcessed }: DataFilesSelectorProps) {
         setError('');
 
         try {
-            const response = await fetch(`/api/data-files/${encodeURIComponent(selectedFile)}/content`);
+            const response = await fetch(`/api/data-files/${encodeURIComponent(selectedFile)}`);
 
             if (!response.ok) {
                 throw new Error(`Failed to load file: ${response.status} ${response.statusText}`);