Update scripts

scripts/core/numberParser.ts

@@ -0,0 +1,10 @@
+export default class NumberParser {
+  async parse(number: string) {
+    const parsed = parseInt(number)
+    if (isNaN(parsed)) {
+      throw new Error('numberParser:parse() Input value is not a number')
+    }
+
+    return parsed
+  }
+}