feat: unify income payment cards and drop period comparisons (WealthLedger/main#33)

- income page renders only selected-period totals and payments; the
  comparison blocks, notices and display-only percentage math removed
- new shared PayoutCard presents executed payouts, forecasts and
  per-security schedules with explicit money semantics
- ledger rows, upcoming events, stock dividends and bond coupons use
  the same card; period filter lost its duplicated paper wrapper

src/app/routes/AppRoutes/AllAccounts.test.tsx

@@ -95,10 +95,6 @@ const analytics: IncomeAnalytics
 			},
 		],
 		period: { from: "2026-08-01", to: "2026-08-31" },
-		previous: {
-			period: { from: "2026-07-01", to: "2026-07-31" },
-			totalsByCurrency: [],
-		},
 		totalsByCurrency: [
 			{
 				coupon: { currency: "RUB", value: "2" },
@@ -107,7 +103,6 @@ const analytics: IncomeAnalytics
 				total: { currency: "RUB", value: "2" },
 			},
 		],
-		yearComparison: null,
 	};
 
 const CurrentLocation: FC = () => {