Fix PrintModal to fetch library file sliced_for_model

- Added query to fetch library file details in PrintModal
- Updated backend FileResponse schema to include metadata fields (print_name, print_time_seconds, filament_used_grams, sliced_for_model)
- Updated backend get_file endpoint to extract and return metadata fields
- Updated frontend LibraryFile interface to include metadata fields
- Now slicedForModel is properly extracted from both archives and library files

Co-authored-by: cadtoolbox <12723486+cadtoolbox@users.noreply.github.com>

frontend/src/api/client.ts

@@ -3802,6 +3802,11 @@ export interface LibraryFile {
   created_by_username: string | null;
   created_at: string;
   updated_at: string;
+  // Metadata fields
+  print_name: string | null;
+  print_time_seconds: number | null;
+  filament_used_grams: number | null;
+  sliced_for_model: string | null;
 }
 
 export interface LibraryFileListItem {

frontend/src/components/PrintModal/index.tsx

@@ -180,8 +180,15 @@ export function PrintModal({
     enabled: !!archiveId && !isLibraryFile,
   });
 
+  // Fetch library file details to get sliced_for_model
+  const { data: libraryFileDetails } = useQuery({
+    queryKey: ['library-file', libraryFileId],
+    queryFn: () => api.getLibraryFile(libraryFileId!),
+    enabled: isLibraryFile && !!libraryFileId,
+  });
+
   // Get sliced_for_model from archive or library file
-  const slicedForModel = archiveDetails?.sliced_for_model || null;
+  const slicedForModel = archiveDetails?.sliced_for_model || libraryFileDetails?.sliced_for_model || null;
 
   // Fetch plates for archives
   const { data: archivePlatesData, isError: archivePlatesError } = useQuery({