Fix bulk import: group tagless files by folder, use folder name as search fallback

src/components/admin/bulk-import/MatchReviewStep.tsx

@@ -39,7 +39,12 @@ function BookRow({
   const isDisabled = book.inLibrary || book.hasActiveRequest;
   const isSkipped = book.skipped;
   const hasMatch = book.match !== null;
-  const isLowConfidence = book.metadataSource === 'file_name';
+  // Low confidence when search term came from a filename or folder name fallback,
+  // BUT not when an ASIN was extracted directly from the folder name (that's a
+  // direct lookup and is as reliable as embedded metadata tags).
+  const isLowConfidence =
+    (book.metadataSource === 'file_name' || book.metadataSource === 'folder_name') &&
+    !book.extractedAsin;
 
   return (
     <div

src/components/admin/bulk-import/types.ts

@@ -34,7 +34,9 @@ export interface ScannedBook {
   relativePath: string;
   audioFileCount: number;
   totalSizeBytes: number;
-  metadataSource: 'tags' | 'file_name';
+  metadataSource: 'tags' | 'folder_name' | 'file_name';
+  /** ASIN extracted directly from the folder name, if present. */
+  extractedAsin?: string;
   searchTerm: string;
   audioFiles: string[];
   match: AudibleMatch | null;