feat: v0.10.0 — right Jobs & Market pane (contracts accept/dispatch, market buy/sell/refuel with live previews); catalog + economy constants exposed in /api/state; shared applySnapshot for instant action feedback

lib/format.ts

@@ -18,3 +18,23 @@ export function formatSimClock(clockMs: number): string {
   const pad = (n: number) => String(n).padStart(2, '0');
   return `${d.getUTCFullYear()}-${pad(d.getUTCMonth() + 1)}-${pad(d.getUTCDate())} ${pad(d.getUTCHours())}:${pad(d.getUTCMinutes())}:${pad(d.getUTCSeconds())} UTC`;
 }
+
+// Compact game-time duration rounded to the minute: "2d 3h" / "14h 30m" / "45m".
+export function formatDuration(ms: number): string {
+  const totalMin = Math.max(0, Math.round(ms / 60_000));
+  const d = Math.floor(totalMin / (24 * 60));
+  const h = Math.floor((totalMin % (24 * 60)) / 60);
+  const m = totalMin % 60;
+  if (d > 0) return `${d}d ${h}h`;
+  if (h > 0) return `${h}h ${m}m`;
+  return `${m}m`;
+}
+
+// Contract deadline relative to the sim clock: "in 14h 30m"; a passed deadline reads
+// "overdue" and a sub-minute one "now". Pure — unit-testable, no game logic.
+export function formatDeadlineRelative(deadlineMs: number, nowMs: number): string {
+  const diff = deadlineMs - nowMs;
+  if (diff <= 0) return 'overdue';
+  if (diff < 60_000) return 'now'; // sub-minute — "in 1m" starts at a full minute
+  return `in ${formatDuration(diff)}`;
+}