refactor: enforce enum machine codes #18

Use owner enums for known codes; preserve wire values and unknown fallbacks.

Verified npm ci and verify: 379 tests, 5 lint checks, app and Storybook builds.

src/features/tbank-connection/model/screen-sync.ts

@@ -2,9 +2,11 @@ import { type QueryKey, useQueryClient } from "@tanstack/react-query";
 import { useEffect, useLayoutEffect, useRef, useState } from "react";
 
 import {
+	ApiErrorCode,
 	apiErrorCode,
 	apiQueryClient,
 	invalidateResourceAccess,
+	isApiErrorCode,
 	type paths,
 	useAuthenticatedQueries,
 } from "@/shared/api";
@@ -112,7 +114,7 @@ function useScreenSync(scope: InvestmentScreen, resources: ScreenResource[]) {
 			}
 
 			deniedRef.current.add(status.error);
-			if (apiErrorCode(status.error) !== "NOT_FOUND")
+			if (!isApiErrorCode(apiErrorCode(status.error), ApiErrorCode.NotFound))
 				invalidateResourceAccess(client, "brokerage", status.error);
 		}
 		const latest = new Map<string, ResourceMeta>();