refactor: align frontend ownership boundaries

Close audit gaps across API drift, query policy, UI, and tests.

src/entities/portfolio/api/usePortfolio.ts

@@ -1,24 +1,30 @@
-import { apiQueryClient, useAuthenticatedQuery } from "@/shared/api";
-import type { paths } from "@/shared/api/generated/schema";
+import {
+	apiQueryClient,
+	type paths,
+	useAuthenticatedQuery,
+} from "@/shared/api";
 
 const portfolioQueryPolicy = {
 	staleTime: 30_000,
-	retry: false,
 } as const;
 
 type Portfolio =
 	paths["/api/v1/brokerage-accounts/{accountId}/portfolio"]["get"]["responses"][200]["content"]["application/json"];
 
+function portfolioQueryOptions(accountId: string | undefined) {
+	return apiQueryClient.queryOptions(
+		"get",
+		"/api/v1/brokerage-accounts/{accountId}/portfolio",
+		{ params: { path: { accountId: accountId ?? "" } } },
+	);
+}
+
 function usePortfolio(accountId: string | undefined) {
 	return useAuthenticatedQuery({
-		...apiQueryClient.queryOptions(
-			"get",
-			"/api/v1/brokerage-accounts/{accountId}/portfolio",
-			{ params: { path: { accountId: accountId ?? "" } } },
-		),
+		...portfolioQueryOptions(accountId),
 		enabled: Boolean(accountId),
 		...portfolioQueryPolicy,
 	});
 }
 
-export { type Portfolio, usePortfolio };
+export { type Portfolio, portfolioQueryOptions, usePortfolio };