refactor: clarify frontend model ownership

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

@@ -238,6 +238,34 @@ describe("All accounts routes", () => {
 		);
 	});
 
+	it.each(["operations", "events", "income"])(
+		"restores applied dates when switching accounts in %s",
+		async (section) => {
+			const search = "?from=2026-08-01&to=2026-08-31";
+			renderPage(`/accounts/all/${section}${search}`);
+			fireEvent.click(await screen.findByLabelText("Период"));
+			fireEvent.click(
+				await screen.findByRole("button", { name: /10 August 2026/i }),
+			);
+			fireEvent.click(
+				await screen.findByRole("button", { name: /31 August 2026/i }),
+			);
+			expect(screen.getByLabelText("Период")).toHaveTextContent(
+				"10.08.2026 – 31.08.2026",
+			);
+			fireEvent.click(screen.getByRole("combobox", { name: "Счёт" }));
+			fireEvent.click(await screen.findByRole("option", { name: "ИИС" }));
+			await waitFor(() =>
+				expect(screen.getByLabelText("Период")).toHaveTextContent(
+					"01.08.2026 – 31.08.2026",
+				),
+			);
+			expect(screen.getByLabelText("Текущий путь")).toHaveTextContent(
+				`/accounts/b/${section}${search}`,
+			);
+		},
+	);
+
 	it("groups the same security and links its accounts and overview sections", async () => {
 		renderPage("/accounts/all");
 		expect(await screen.findAllByText("Сбербанк")).toHaveLength(1);
@@ -312,6 +340,11 @@ describe("All accounts routes", () => {
 		expect(screen.getByLabelText("Текущий путь")).toHaveTextContent(
 			"/accounts/b/operations?from=2026-08-01&to=2026-08-31&categories=income",
 		);
+		await screen.findByText("Первая страница");
+		fireEvent.click(screen.getByRole("combobox", { name: "Счёт" }));
+		fireEvent.click(await screen.findByRole("option", { name: "Все счета" }));
+		await waitFor(() => expect(screen.getByText("Первая страница")).toBeVisible());
+		expect(screen.getByRole("button", { name: "Назад" })).toBeDisabled();
 	});
 
 	it("restarts an expired aggregate cursor without losing filters", async () => {

src/app/routes/AppRoutes/AppRoutes.tsx

@@ -200,42 +200,6 @@ const AppRoutes: FC = () => (
 				path="/accounts"
 			/>
 
-			<Route
-				element={(
-					<LazyPage variant="content">
-						<AccountPage accountId="all" />
-					</LazyPage>
-				)}
-				path="/accounts/all"
-			/>
-
-			<Route
-				element={(
-					<LazyPage variant="content">
-						<AccountOperationsPage accountId="all" />
-					</LazyPage>
-				)}
-				path="/accounts/all/operations"
-			/>
-
-			<Route
-				element={(
-					<LazyPage variant="content">
-						<AccountIncomePage accountId="all" />
-					</LazyPage>
-				)}
-				path="/accounts/all/income"
-			/>
-
-			<Route
-				element={(
-					<LazyPage variant="content">
-						<AccountEventsPage accountId="all" />
-					</LazyPage>
-				)}
-				path="/accounts/all/events"
-			/>
-
 			<Route
 				element={(
 					<LazyPage variant="content">