feat: quiz

app/(dashboard)/quizzes/labels.ts

@@ -0,0 +1,17 @@
+import type { Quiz } from "@/lib/api";
+
+export const KIND_LABEL: Record<Quiz["target_kind"], string> = {
+  chapter: "Book chapter",
+  lecture: "Lecture",
+  conversation: "Conversation",
+  standalone: "Stand-alone",
+};
+
+/** "1m 12s" / "8.4s" — response times read better than raw milliseconds. */
+export function fmtMs(ms: number | null | undefined): string {
+  if (ms == null) return "—";
+  if (ms < 60_000) return `${(ms / 1000).toFixed(1)}s`;
+  const m = Math.floor(ms / 60_000);
+  const s = Math.round((ms % 60_000) / 1000);
+  return `${m}m ${s}s`;
+}