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/features/housekeeping/foundation/foundation-source-contract.test.ts

@@ -621,15 +621,15 @@ describe("housekeeping foundation completion contracts", () => {
 		expect(html).toContain(`>${sentinel}</button>`);
 	});
 
-	it("validates the complete 144-row migration matrix without issues", () => {
+	it("validates the complete 146-row migration matrix without issues", () => {
 		const discovered = discoverLegacyPages();
 		const issues = validateMigrationEntries(
 			discovered,
 			HOUSEKEEPING_MIGRATION_MATRIX,
 		);
 
-		expect(HOUSEKEEPING_MIGRATION_MATRIX).toHaveLength(144);
-		expect(discovered).toHaveLength(144);
+		expect(HOUSEKEEPING_MIGRATION_MATRIX).toHaveLength(146);
+		expect(discovered).toHaveLength(146);
 		expect(issues).toEqual([]);
 	});
 });