feat(user): sync entitlement snapshot

src/data/dto/user/__tests__/user.test.ts

@@ -1,5 +1,6 @@
 import { describe, expect, it } from "vitest";
 
+import { UserEntitlements } from "@/data/dto/user";
 import { User } from "@/data/dto/user/user";
 
 describe("User", () => {
@@ -42,4 +43,51 @@ describe("User", () => {
       lastMessageAt: "2026-06-24T11:00:23.156561+00:00",
     });
   });
+
+  it("parses the latest backend entitlements payload", () => {
+    const entitlements = UserEntitlements.fromJson({
+      userId: "user-1",
+      isGuest: false,
+      isVip: true,
+      vipExpiresAt: "2026-07-26T00:00:00+00:00",
+      creditBalance: 120,
+      dolBalance: 120,
+      policy: {
+        membershipState: "vip",
+        nonVipEntitlementsShared: true,
+        guestSameAsLoggedInNonVip: true,
+        refreshAfterPayment: "GET /api/user/entitlements",
+      },
+      costs: {
+        normal_message: 2,
+        private_message: 10,
+        voice_message: 20,
+        photo: 40,
+        voice_call_minute: 50,
+        private_album_10: 300,
+        private_album_20: 600,
+      },
+      quotas: {
+        normalChatFreeDaily: 30,
+        privateUnlockFreeDaily: 1,
+        voiceMessageFreeDaily: 0,
+        photoFreeDaily: 0,
+      },
+      historyUnlock: {
+        enabled: true,
+        order: "oldest_first",
+        chargeMode: "highest_cost_per_locked_message",
+        insufficientBalanceBehavior: "no_deduction",
+        costs: {
+          private_message: 10,
+          voice_message: 20,
+          photo: 40,
+        },
+      },
+    });
+
+    expect(entitlements.isVip).toBe(true);
+    expect(entitlements.creditBalance).toBe(120);
+    expect(entitlements.historyUnlock.costs.photo).toBe(40);
+  });
 });