Function fetchReadingStatuses

fetchReadingStatuses(): Promise<Record<string, ReadingStatus>>
queryFn for READING_STATUS_QUERY_KEY: run the legacy migration (a no-op once the blob is gone), then fetch the map.

Returns Promise<Record<string, ReadingStatus>>
- Defined in work/linxiv-site/linxiv-site/.sources/linxiv/src/api/readingStatus.ts:63