Audit of the ABS Android Kotlin data classes against silo's emitted
JSON found six non-nullable LibraryItem fields silo wasn't emitting
at all (ino, path, relPath, mtimeMs, ctimeMs, birthtimeMs) plus a
non-nullable BookMetadata.explicit. jackson-module-kotlin's behaviour
around missing required parameters varies by config — some flows are
lenient enough that the library list loads with the omissions, but
the strict download path (apiHandler.getLibraryItemWithProgress)
hits a MissingKotlinParameterException and silently resolves cb(null)
which kills the AbsDownloader without a user-visible toast.
Emit safe defaults: ino = ContentID (stable item-level identifier
matching the real-ABS shape), path/relPath = "", mtime/ctime/
birthtimeMs = AddedAt, explicit = false. Costs almost nothing on the
wire and forecloses future Jackson-strictness surprises.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
