chore(architecture): enforce app data boundaries

eslint.config.mjs

@@ -5,6 +5,37 @@ import nextTs from "eslint-config-next/typescript";
 const eslintConfig = defineConfig([
   ...nextVitals,
   ...nextTs,
+  {
+    files: ["src/app/**/*.{ts,tsx}"],
+    ignores: ["src/app/api/**", "src/app/**/route.ts"],
+    rules: {
+      "no-restricted-imports": [
+        "error",
+        {
+          patterns: [
+            {
+              group: [
+                "@/data/repositories",
+                "@/data/repositories/*",
+                "@/data/repositories/**",
+              ],
+              message:
+                "App UI should depend on stores or lib use-case helpers instead of repositories.",
+            },
+            {
+              group: [
+                "@/data/storage",
+                "@/data/storage/*",
+                "@/data/storage/**",
+              ],
+              message:
+                "App UI should not access storage directly; move persistence behind lib or stores.",
+            },
+          ],
+        },
+      ],
+    },
+  },
   // Override default ignores of eslint-config-next.
   globalIgnores([
     // Default ignores of eslint-config-next:

src/app/subscription/success/page.tsx

@@ -16,7 +16,7 @@ import Link from "next/link";
 import { useRouter } from "next/navigation";
 
 import { MobileShell } from "@/app/_components/core/mobile-shell";
-import { getPaymentRepository } from "@/data/repositories/payment_repository";
+import { getCurrentVipPaymentStatus } from "@/lib/payment/payment_status";
 import { ROUTES } from "@/router/routes";
 
 export default function SubscriptionSuccessPage() {
@@ -33,7 +33,7 @@ export default function SubscriptionSuccessPage() {
     let cancelled = false;
     const tryRefresh = async (attemptsLeft: number) => {
       if (cancelled) return;
-      const r = await getPaymentRepository().getVipStatus();
+      const r = await getCurrentVipPaymentStatus();
       if (cancelled) return;
       if (r.success) {
         if (r.data.isVip) {

src/lib/payment/payment_status.ts

@@ -0,0 +1,11 @@
+"use client";
+
+import type { PaymentVipStatusResponse } from "@/data/dto/payment";
+import { getPaymentRepository } from "@/data/repositories/payment_repository";
+import type { Result } from "@/utils";
+
+export function getCurrentVipPaymentStatus(): Promise<
+  Result<PaymentVipStatusResponse>
+> {
+  return getPaymentRepository().getVipStatus();
+}