Update src/loaders/vfm-loader.ts

component definitely makes the instructions clearer and maintains consistency with Starlight's UI. I'll apply this change.

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: ogwata

src/loaders/vfm-loader.ts

@@ -55,6 +55,7 @@ async function collectMarkdownFiles(dir: string, baseDir: string): Promise<strin
     }
   } catch (error) {
     console.warn(`Warning: Could not read directory ${dir}:`, error);
+    throw error;
   }
 
   return files;