feat(dailies): offer a game's built-in weekly tasks, and show them once on

The strip asks once, in one line, about a game on screen that has
built-ins. Yes puts them beside its dailies, drawn and counted like the
reader's own tasks, with a tooltip giving the source's date.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/shared/routines.ts

@@ -95,3 +95,11 @@ export function routineToAsk(
   }
   return null;
 }
+
+const MONTHS = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"];
+
+/** `2025-12-02` → `2 Dec 2025`: the same in every locale, so it reads the same wherever it is quoted. */
+export function asOfLabel(day: string): string {
+  const [y, m, d] = day.split("-").map(Number);
+  return `${d} ${MONTHS[(m ?? 1) - 1]} ${y}`;
+}