use chart.lntype to sniff lntype instead of score.lntype

server/src/lib/score-import/import-types/ir/beatoraja/converter.ts

@@ -97,7 +97,9 @@ export const ConverterIRBeatoraja: ConverterFunction<BeatorajaScore, BeatorajaCo
 	importType,
 	logger
 ) => {
-	if (data.lntype !== 0) {
+	// ALWAYS USE CHART.LNTYPE, NOT DATA.LNTYPE!
+	// beatoraja has a bug where IRScore LNTypes are always set to 0.
+	if (context.chart.lntype !== 0) {
 		throw new InvalidScoreFailure("CN or HCN mode is not supported by this IR.");
 	}
 

server/src/lib/score-import/import-types/ir/beatoraja/parser.ts

@@ -53,6 +53,7 @@ const PR_BeatorajaChart = {
 	artist: "string",
 	subartist: "string",
 	total: p.isPositive,
+	lntype: p.isIn(-1, 0, 1, 2),
 
 	// currently only accepted playtypes.
 	mode: p.isIn("BEAT_7K", "BEAT_14K"),

server/src/lib/score-import/import-types/ir/beatoraja/types.ts

@@ -21,6 +21,7 @@ export interface BeatorajaChart {
 	notes: integer;
 	hasRandom: boolean;
 	hasUndefinedLN: boolean;
+	lntype: -1 | 0 | 1 | 2;
 }
 
 export interface BeatorajaScore {