refactor: address frontend review feedback

src/pages/account-income/ui/AccountIncomePage/AccountIncomePage.test.tsx

@@ -38,8 +38,6 @@ import {
 } from "./AccountIncomePage.vm";
 import { IncomePayments } from "./components/IncomePayments.view";
 
-/* eslint-disable unicorn/no-null -- Fixture preserves the production contract’s explicit null values. */
-
 const analytics
 	= {
 		accountId: "account-1",
@@ -81,7 +79,7 @@ const analytics
 		},
 		totalsByCurrency: [summary("RUB", "10", "2")],
 		yearComparison: null,
-	} satisfies /* eslint-enable unicorn/no-null */ IncomeAnalytics;
+	} satisfies IncomeAnalytics;
 
 function comparison(currency: string) {
 	return {
@@ -93,28 +91,24 @@ function comparison(currency: string) {
 }
 
 function entry(): IncomeAnalytics["entries"][number] {
-	/* eslint-disable unicorn/no-null -- Fixture preserves the production contract’s explicit null values. */
-	return (
-		{
-			accruedInterest: null,
-			category: "income",
-			commission: null,
-			description: "Купон",
-			figi: "FIGI",
-			id: "coupon-1",
-			instrumentKey: "income-group-opaque-v2",
-			instrumentType: "bond",
-			instrumentUid: null,
-			logoName: null,
-			occurredAt: "2026-08-01T12:00:00Z",
-			payment: money("RUB", "10"),
-			price: null,
-			quantity: null,
-			ticker: "BOND",
-			type: "OPERATION_TYPE_COUPON",
-		}
-		/* eslint-enable unicorn/no-null */
-	);
+	return {
+		accruedInterest: null,
+		category: "income",
+		commission: null,
+		description: "Купон",
+		figi: "FIGI",
+		id: "coupon-1",
+		instrumentKey: "income-group-opaque-v2",
+		instrumentType: "bond",
+		instrumentUid: null,
+		logoName: null,
+		occurredAt: "2026-08-01T12:00:00Z",
+		payment: money("RUB", "10"),
+		price: null,
+		quantity: null,
+		ticker: "BOND",
+		type: "OPERATION_TYPE_COUPON",
+	};
 }
 
 function money(currency: string, value: string) {
@@ -211,7 +205,6 @@ describe("AccountIncomePage", () => {
 
 					return HttpResponse.json(
 						resource(
-							/* eslint-disable unicorn/no-null -- Fixture preserves the production contract’s explicit null values. */
 							null,
 							{
 								sync: {
@@ -220,7 +213,6 @@ describe("AccountIncomePage", () => {
 									state: "failed",
 								},
 							},
-							/* eslint-enable unicorn/no-null */
 						),
 					);
 				},
@@ -434,7 +426,6 @@ describe("AccountIncomePage", () => {
 	});
 
 	it("renders the signed drill-down using opaque membership rather than instrument identity", async () => {
-		/* eslint-disable unicorn/no-null -- Fixture preserves the production contract’s explicit null values. */
 		const response
 			= {
 				...analytics,
@@ -464,7 +455,6 @@ describe("AccountIncomePage", () => {
 				],
 			};
 
-		/* eslint-enable unicorn/no-null */
 		server.use(
 			http.get("*/api/v1/brokerage-accounts/account-1/income-analytics", () =>
 				HttpResponse.json(resource(response)),
@@ -607,37 +597,31 @@ describe("income comparison display", () => {
 		[
 			"10",
 			"0",
-			// eslint-disable-next-line unicorn/no-null -- Exercise the explicit null returned by the production API/DOM contract.
 			null,
 		],
 		[
 			"0",
 			"0",
-			// eslint-disable-next-line unicorn/no-null -- Exercise the explicit null returned by the production API/DOM contract.
 			null,
 		],
 		[
 			"10",
 			"-0.00",
-			// eslint-disable-next-line unicorn/no-null -- Exercise the explicit null returned by the production API/DOM contract.
 			null,
 		],
 		[
 			"10",
 			"-100",
-			// eslint-disable-next-line unicorn/no-null -- Exercise the explicit null returned by the production API/DOM contract.
 			null,
 		],
 		[
 			"9".repeat(400),
 			"1",
-			// eslint-disable-next-line unicorn/no-null -- Exercise the explicit null returned by the production API/DOM contract.
 			null,
 		],
 		[
 			"1",
 			"9".repeat(400),
-			// eslint-disable-next-line unicorn/no-null -- Exercise the explicit null returned by the production API/DOM contract.
 			null,
 		],
 	])("formats change %s against base %s", (difference, base, expected) => {
@@ -656,7 +640,7 @@ describe("income comparison display", () => {
 		const result = display?.comparison?.values[0];
 		expect(
 			result?.percentages.coupon?.replaceAll("\u{A0}", " ")
-			// eslint-disable-next-line unicorn/no-null -- Exercise the explicit null returned by the production API/DOM contract.
+
 			?? null,
 		).toBe(expected);
 		expect(result?.difference.coupon.value).toBe(difference);
@@ -863,7 +847,7 @@ describe("income period and snapshot boundary", () => {
 				),
 			),
 			http.get("*/api/v1/tbank-sync/:id", () =>
-				/* eslint-disable unicorn/no-null -- Fixture preserves the production contract’s explicit null values. */
+
 				HttpResponse.json(
 					{
 						errorCode: null,
@@ -874,7 +858,6 @@ describe("income period and snapshot boundary", () => {
 						scope: null,
 						state: "succeeded",
 					},
-					/* eslint-enable unicorn/no-null */
 				),
 			),
 			http.get("*/api/v1/brokerage-accounts/account-1/income-analytics", () =>
@@ -998,8 +981,6 @@ describe("income period and snapshot boundary", () => {
 it("maps comparison notices by role regardless of dependency order or resource key", () => {
 	const selected = { ...resource(analytics).meta, role: "selected" as const };
 
-	/* eslint-disable unicorn/no-null -- Fixture preserves the production contract’s explicit null values. */
-
 	const previous
 		= {
 			...resource(null).meta,
@@ -1012,7 +993,6 @@ it("maps comparison notices by role regardless of dependency order or resource k
 			},
 		};
 
-	/* eslint-enable unicorn/no-null */
 	const year = {
 		...resource(null).meta,
 		resourceKey: "opaque/previous-looking-key",
@@ -1041,10 +1021,10 @@ it.each([false, true])(
 		server.use(
 			http.get("*/api/v1/brokerage-accounts/account-1/income-analytics", () =>
 				HttpResponse.json(
-					/* eslint-disable unicorn/no-null -- Fixture preserves the production contract’s explicit null values. */
+
 					resource(
 						{ ...analytics, previous: null, yearComparison: null },
-						/* eslint-enable unicorn/no-null */ {
+						{
 							dependencies: legacy
 								? [
 										resource(null).meta,
@@ -1073,22 +1053,21 @@ it.each([false, true])(
 
 it("shows selected income before comparison coverage without inventing a zero baseline", async () => {
 	const dependencies = (["year", "selected", "previous"] as const).map(
-		/* eslint-disable unicorn/no-null -- Fixture preserves the production contract’s explicit null values. */
+
 		role =>
 			({
 				...resource(role === "selected" ? analytics : null).meta,
 				role,
 			}),
-		/* eslint-enable unicorn/no-null */
 	);
 
 	server.use(
 		http.get("*/api/v1/brokerage-accounts/account-1/income-analytics", () =>
 			HttpResponse.json(
-				/* eslint-disable unicorn/no-null -- Fixture preserves the production contract’s explicit null values. */
+
 				resource(
 					{ ...analytics, previous: null, yearComparison: null },
-					/* eslint-enable unicorn/no-null */ { dependencies },
+					{ dependencies },
 				),
 			),
 		),
@@ -1116,7 +1095,7 @@ it("keeps complete previous comparison while year source failed without inventin
 		{
 			...resource(analytics).meta,
 			role: "previous" as const,
-		/* eslint-disable unicorn/no-null -- Fixture preserves the production contract’s explicit null values. */
+
 		},
 		{
 			...resource(null).meta,
@@ -1127,7 +1106,7 @@ it("keeps complete previous comparison while year source failed without inventin
 				state: "failed" as const,
 			},
 		},
-		/* eslint-enable unicorn/no-null */ {
+		{
 			...resource(analytics).meta,
 			role: "selected" as const,
 		},