align to metadata keys doc

2026-08-30 19:51:24 +02:00
parent 4dc6d46c47
commit 4c7248da58
3 changed files with 279 additions and 0 deletions
@@ -433,6 +433,9 @@ fn into_discovery_record(
    fields.insert("title".into(), title);
    fields.insert("fileType".into(), "document".into());
    fields.insert("contentKind".into(), "book".into());
+    // A book's identity graph is Gutenberg/ISBN → `literature`
+    // (METADATA_KEYS.md §1). Written with the kind, never derived on read.
+    fields.insert("domain".into(), "literature".into());
    fields.insert(
        "sourceUrl".into(),
        format!("https://www.gutenberg.org/ebooks/{id}"),