feat(referrals): add referral attribution and daily login rewards

- Track referral attribution at registration via ?ref code with
  same-IP and duplicate-pair guards
- Add daily login rewards with streak tracking, claim flow and
  sendCurrency payout backed by RCON with DB fallback
- Add admin pages for referral settings and the daily reward schedule
- Add migration 0033 with tables, seed schedule, settings and ACL grants
- Add admin.referrals.* and admin.dailyrewards.* permission slugs
- Localize new copy in en, nl and it

src/app/(site)/me/DashboardTasks.tsx

@@ -8,9 +8,12 @@ import styles from "./dashboard.module.css";
 export default async function DashboardTasks({
 	userId,
 	rewardAvailable,
+	dailyRewardAvailable,
 }: {
 	userId: number;
 	rewardAvailable: boolean | null;
+	/** Claimable daily login reward (false when claimed/disabled or loader down). */
+	dailyRewardAvailable?: boolean;
 }) {
 	const [data, t, format] = await Promise.all([
 		loadDashboardTasks(userId),
@@ -41,6 +44,8 @@ export default async function DashboardTasks({
 		});
 	if (rewardAvailable)
 		items.push({ href: "#referral-reward", label: t("reward") });
+	if (dailyRewardAvailable)
+		items.push({ href: "#daily-reward", label: t("dailyReward") });
 	const unavailable =
 		data.support === null ||
 		data.friendRequests === null ||