Sort folders first then files

src/providers/prompterTreeProvider.ts

@@ -85,7 +85,21 @@ export class PrompterTreeProvider implements vscode.TreeDataProvider<FileTreeIte
         try {
             const files = await vscode.workspace.fs.readDirectory(vscode.Uri.file(dirPath));
 
-            return files.map(([name, type]) => {
+            // Sort by type first (directories first), then alphabetically by name
+            const sortedFiles = [...files].sort((a, b) => {
+                const [nameA, typeA] = a;
+                const [nameB, typeB] = b;
+                
+                // If types are different, directories (type 2) come before files (type 1)
+                if (typeA !== typeB) {
+                    return typeB - typeA; // Descending order by type puts directories first
+                }
+                
+                // If types are the same, sort alphabetically by name
+                return nameA.localeCompare(nameB, undefined, { sensitivity: 'base' });
+            });
+
+            return sortedFiles.map(([name, type]) => {
                 const filePath = path.join(dirPath, name);
                 const uri = vscode.Uri.file(filePath);