fix(series): prevent wrong-volume request matches

Compare release and imported metadata against the requested series position so unattended fulfillment cannot file a later volume under the request. Keep unnumbered candidates eligible and leave exact ISBN matches decisive.

Fixes #2037

server/src/common/text-match/title-match.ts

@@ -78,7 +78,7 @@ export function normalizeTitleText(value: string): string {
 }
 
 export function tokenizeTitleText(value: string): string[] {
-  return value.split(' ').filter((token) => token.length > 1);
+  return value.split(' ').filter((token) => token.length > 1 || /^\p{N}$/u.test(token));
 }
 
 /**