fix(ai-character): 관리자 권한 확인 중복 요청 방지

src/app/App.protected-shell.test.tsx

@@ -3,7 +3,7 @@ import { http, HttpResponse } from "msw";
 import { afterEach, beforeEach, expect, test, vi } from "vitest";
 
 import { App } from "./App";
-import { apiBaseUrl, installDesktopMediaQuery, requireElement, saveAdminSession, useAiCharactersResponse } from "./app-test-support";
+import { apiBaseUrl, installDesktopMediaQuery, requireElement, saveAdminSession, useAiCharacterDetailResponse, useAiCharactersResponse } from "./app-test-support";
 import { authSessionStorage } from "@/features/auth/model/auth-session-storage";
 import { server } from "@/shared/test/server";
 
@@ -41,6 +41,26 @@ test("renders the protected admin shell for an existing ADMIN session", async ()
   await waitFor(() => expect(requests).toHaveLength(2));
 });
 
+test("reuses successful ADMIN verification during protected intra-app navigation", async () => {
+  saveAdminSession();
+  const verificationRequests: Request[] = [];
+  useAiCharactersResponse(200, (request) => verificationRequests.push(request));
+  useAiCharacterDetailResponse("101");
+  window.history.pushState({}, "", "/ai-characters");
+
+  render(<App />);
+  await screen.findByRole("main", { name: "AI 캐릭터 관리" });
+  await waitFor(() => expect(verificationRequests).toHaveLength(2));
+
+  window.history.pushState({}, "", "/ai-characters/101/edit");
+  fireEvent.popState(window);
+
+  expect(screen.getByRole("main", { name: "AI 캐릭터 관리" })).toBeInTheDocument();
+  expect(screen.queryByRole("heading", { name: "관리자 권한 확인 중" })).not.toBeInTheDocument();
+  expect(await screen.findByRole("heading", { name: "AI 캐릭터 수정" })).toBeInTheDocument();
+  expect(verificationRequests).toHaveLength(2);
+});
+
 test("shows an accessible status while the initial protected route probe is pending", async () => {
   saveAdminSession();
   let resolveProbeReady: (finishProbe: () => void) => void = () => undefined;
@@ -59,7 +79,7 @@ test("shows an accessible status while the initial protected route probe is pend
   render(<App />);
   const finishProbe = await probeReady;
 
-  expect(screen.getByRole("status")).toHaveTextContent("보호 route 확인 중");
+  expect(screen.getByRole("status")).toHaveTextContent("관리자 권한 확인 중");
   expect(screen.queryByRole("main", { name: "AI 캐릭터 관리" })).not.toBeInTheDocument();
   expect(screen.queryByRole("button", { name: "로그아웃" })).not.toBeInTheDocument();
   finishProbe();
@@ -84,7 +104,7 @@ test("keeps malformed protected routes behind the ADMIN probe", async () => {
   render(<App />);
   const finishProbe = await probeReady;
 
-  expect(screen.getByRole("status")).toHaveTextContent("보호 route 확인 중");
+  expect(screen.getByRole("status")).toHaveTextContent("관리자 권한 확인 중");
   expect(screen.queryByRole("main", { name: "AI 캐릭터 관리" })).not.toBeInTheDocument();
   finishProbe();
   expect(await screen.findByRole("heading", { name: "접근 권한이 없습니다" })).toBeInTheDocument();
@@ -122,7 +142,7 @@ test.each([
   render(<App />);
   const finishProbe = await probeReady;
 
-  expect(screen.getByRole("status")).toHaveTextContent("보호 route 확인 중");
+  expect(screen.getByRole("status")).toHaveTextContent("관리자 권한 확인 중");
   expect(screen.queryByRole("main", { name: "AI 캐릭터 관리" })).not.toBeInTheDocument();
   expect(screen.queryByRole("button", { name: "로그아웃" })).not.toBeInTheDocument();
   finishProbe();