feat(portal): add SSR operations and exclusive groups

apps/web/src/lib/admin-metrics.ts

@@ -0,0 +1,15 @@
+export interface DailyCount {
+  day: string;
+  count: number;
+}
+
+export function fillDailySeries(rows: DailyCount[], end: Date, days: number) {
+  const counts = new Map(rows.map((row) => [row.day, Number(row.count)]));
+  const endDay = new Date(Date.UTC(end.getUTCFullYear(), end.getUTCMonth(), end.getUTCDate()));
+  return Array.from({ length: days }, (_, index) => {
+    const date = new Date(endDay);
+    date.setUTCDate(endDay.getUTCDate() - (days - index - 1));
+    const day = date.toISOString().slice(0, 10);
+    return { day, count: counts.get(day) ?? 0 };
+  });
+}