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/DailyRewardCard.tsx

@@ -0,0 +1,94 @@
+import { getTranslations } from "next-intl/server";
+import { claimDailyReward } from "@/actions/daily-reward";
+import { CurrencyIcon } from "@/components/shared/currency-icon";
+import { SurfaceCard } from "@/components/surface-card";
+import {
+	type DailyRewardState,
+	rewardForStreak,
+} from "@/lib/services/daily-rewards";
+import styles from "./dashboard.module.css";
+
+export default async function DailyRewardCard({
+	state,
+}: {
+	state: DailyRewardState;
+}) {
+	const t = await getTranslations("pages.myDashboard");
+
+	if (!state.enabled) {
+		return (
+			<SurfaceCard title={t("dailyRewardTitle")} bodyClassName="p-5">
+				<p className="muted" role="status">
+					{t("dailyRewardDisabled")}
+				</p>
+			</SurfaceCard>
+		);
+	}
+
+	if (state.rewards.length === 0) {
+		return (
+			<SurfaceCard title={t("dailyRewardTitle")} bodyClassName="p-5">
+				<p className="muted" role="status">
+					{t("dailyRewardUnavailable")}
+				</p>
+			</SurfaceCard>
+		);
+	}
+
+	const upcoming = state.alreadyClaimedToday
+		? rewardForStreak(state.rewards, state.nextStreak + 1)
+		: state.nextReward;
+
+	return (
+		<SurfaceCard title={t("dailyRewardTitle")} bodyClassName="p-5">
+			<div id="daily-reward" />
+			<p>{t("dailyRewardHint")}</p>
+			<ul className={styles.dailyTrack}>
+				{state.rewards.map((reward) => (
+					<li
+						key={reward.id}
+						className={`${styles.dailyCell}${
+							!state.alreadyClaimedToday && upcoming?.day === reward.day
+								? ` ${styles.dailyCellNext}`
+								: ""
+						}`}
+					>
+						<span>{t("dailyRewardDay", { day: reward.day })}</span>
+						<CurrencyIcon kind={reward.currency} size={20} alt="" />
+						<strong>{reward.amount}</strong>
+					</li>
+				))}
+			</ul>
+			<p className={styles.dailyStreak}>
+				{t("dailyRewardStreak", { count: state.nextStreak })}
+			</p>
+			{upcoming && (
+				<p className={styles.reward}>
+					<CurrencyIcon kind={upcoming.currency} size={20} alt="" />
+					{t(
+						state.alreadyClaimedToday
+							? "dailyRewardTomorrow"
+							: "dailyRewardNextClaim",
+						{
+							amount: upcoming.amount,
+							currency: t.has(`currencies.${upcoming.currency}`)
+								? t(`currencies.${upcoming.currency}`)
+								: upcoming.currency,
+						},
+					)}
+				</p>
+			)}
+			{state.alreadyClaimedToday ? (
+				<p className="muted" role="status">
+					{t("dailyRewardClaimedToday")}
+				</p>
+			) : (
+				<form action={claimDailyReward} className={styles.claim}>
+					<button type="submit" className="btn btn-primary">
+						{t("dailyRewardClaim")}
+					</button>
+				</form>
+			)}
+		</SurfaceCard>
+	);
+}