Persist book status and add recent catalog section

shared/src/commonMain/kotlin/net/sergeych/toread/storage/LibraryStorage.kt

@@ -205,6 +205,7 @@ interface BookFileRepository {
     fun findPrimaryDuplicateTarget(bodyClusterId: String?, bodyId: String?, rawSha256: String): BookFileRecord?
     fun markDuplicateFiles(): Int
     fun listLibraryFiles(limit: Int = 100, offset: Int = 0): List<LibraryFileRecord>
+    fun listRecentlyAddedLibraryFiles(sinceImportedAt: Long, limit: Int = 50): List<LibraryFileRecord>
     fun searchLibraryFiles(prefixes: List<String>, limit: Int = 100): List<LibraryFileRecord>
     fun list(limit: Int = 500, offset: Int = 0): List<BookFileRecord>
     fun listForBook(bookId: String): List<BookFileRecord>