refactoring files to be located by feature

src/features/local/assignments/models/rubricItem.ts

@@ -0,0 +1,16 @@
+import { z } from "zod";
+
+export interface RubricItem {
+  label: string;
+  points: number;
+}
+
+export const zodRubricItem = z.object({
+  label: z.string(),
+  points: z.number(),
+});
+
+export const rubricItemIsExtraCredit = (item: RubricItem) => {
+  const extraCredit = "(extra credit)";
+  return item.label.toLowerCase().includes(extraCredit.toLowerCase());
+};