diff --git a/memhub/apps/web/src/CallHistory.test.tsx b/memhub/apps/web/src/CallHistory.test.tsx
index c54d121..f4618d2 100644
--- a/memhub/apps/web/src/CallHistory.test.tsx
+++ b/memhub/apps/web/src/CallHistory.test.tsx
@@ -426,7 +426,7 @@ it("does not claim delivery for a call Core never completed", async () => {
   const detail = screen.getByRole("article", { name: "调用详情" });
   expect(within(detail).queryByText(/已返回给/)).toBeNull();
   expect(
-    within(detail).getByText("One Memory 暂时不可用，这次回答没有带上记忆。"),
+    within(detail).getByText("MemHub 暂时不可用，这次回答没有带上记忆。"),
   ).toBeTruthy();
 });
 it("does not restate an undelivered result as returned", async () => {
@@ -486,7 +486,7 @@ it.each([
     "查询超时，没有提供记忆",
     "直接调用（诊断） 这次没来得及查到记忆",
   ],
-  ["unavailable", "One Memory 暂时不可用", "直接调用（诊断） 暂时无法查记忆"],
+  ["unavailable", "MemHub 暂时不可用", "直接调用（诊断） 暂时无法查记忆"],
   ["denied", "当前未授权查询", "直接调用（诊断） 未获准查记忆"],
 ] as const)(
   "renders the %s state without claiming external adoption",
@@ -543,7 +543,7 @@ it("does not call an unavailable call returned", async () => {
   const detail = screen.getByRole("article", { name: "调用详情" });
   expect(within(detail).queryByText(/· 已返回/)).toBeNull();
   expect(
-    within(detail).getAllByText(/One Memory 暂时不可用/).length,
+    within(detail).getAllByText(/MemHub 暂时不可用/).length,
   ).toBeGreaterThan(0);
   expect(within(detail).queryByText(/采用未确认|Core/)).toBeNull();
 });
diff --git a/memhub/apps/web/src/DebugLogPanel.test.tsx b/memhub/apps/web/src/DebugLogPanel.test.tsx
index 4e5d608..ab854fd 100644
--- a/memhub/apps/web/src/DebugLogPanel.test.tsx
+++ b/memhub/apps/web/src/DebugLogPanel.test.tsx
@@ -11,7 +11,11 @@ import {
 import userEvent from "@testing-library/user-event";
 import { afterEach, beforeEach, expect, it, vi } from "vitest";
 import { DebugLogPanel } from "./DebugLogPanel";
-import { LanguageProvider, useGuiLanguage } from "./gui-language";
+import {
+  LANGUAGE_STORAGE_KEY,
+  LanguageProvider,
+  useGuiLanguage,
+} from "./gui-language";
 import {
   recordRendererDebugLog,
   resetRendererDebugLogsForTest,
@@ -117,7 +121,7 @@ it("translates controls live but preserves events and does not change capture",
   // A language bridge is not required by this synthetic browser fixture.
   const read = vi.fn().mockResolvedValue(snapshot);
   window.oneMemory = undefined;
-  localStorage.setItem("one-memory.gui-language", "es");
+  localStorage.setItem(LANGUAGE_STORAGE_KEY, "es");
   const view = render(
     <LanguageProvider>
       <SwitchLanguage />
@@ -311,7 +315,7 @@ it("shows the diagnostics tabs and model usage in Spanish without Chinese copy",
   // Browser-mode language, then the desktop log bridge, as in the test above.
   const bridge = window.oneMemory;
   window.oneMemory = undefined;
-  localStorage.setItem("one-memory.gui-language", "es");
+  localStorage.setItem(LANGUAGE_STORAGE_KEY, "es");
   const view = render(
     <LanguageProvider>
       <DebugLogPanel />
diff --git a/memhub/apps/web/src/FirstUseGuide.test.tsx b/memhub/apps/web/src/FirstUseGuide.test.tsx
index b825551..452970f 100644
--- a/memhub/apps/web/src/FirstUseGuide.test.tsx
+++ b/memhub/apps/web/src/FirstUseGuide.test.tsx
@@ -11,7 +11,11 @@ import {
 import userEvent from "@testing-library/user-event";
 import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
 import { FirstUseGuide, FirstUseInvitation } from "./FirstUseGuide";
-import { LanguageProvider, useGuiLanguage } from "./gui-language";
+import {
+  LANGUAGE_STORAGE_KEY,
+  LanguageProvider,
+  useGuiLanguage,
+} from "./gui-language";
 
 function GuideLanguageSwitch() {
   const { setPreference } = useGuiLanguage();
@@ -24,7 +28,7 @@ function GuideLanguageSwitch() {
 
 it("localizes the supported guide without changing original memory or copying", async () => {
   window.oneMemory = undefined;
-  localStorage.setItem("one-memory.gui-language", "es");
+  localStorage.setItem(LANGUAGE_STORAGE_KEY, "es");
   render(
     <LanguageProvider>
       <GuideLanguageSwitch />
diff --git a/memhub/apps/web/src/GraphWidthPrompt.test.tsx b/memhub/apps/web/src/GraphWidthPrompt.test.tsx
index f30073d..fb55ae0 100644
--- a/memhub/apps/web/src/GraphWidthPrompt.test.tsx
+++ b/memhub/apps/web/src/GraphWidthPrompt.test.tsx
@@ -13,7 +13,11 @@ import { cleanup, render, screen, waitFor } from "@testing-library/react";
 import userEvent from "@testing-library/user-event";
 import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
 import { GraphWidthPrompt } from "./GraphWidthPrompt";
-import { LanguageProvider, useGuiLanguage } from "./gui-language";
+import {
+  LANGUAGE_STORAGE_KEY,
+  LanguageProvider,
+  useGuiLanguage,
+} from "./gui-language";
 
 function LanguageSwitch() {
   const { setPreference } = useGuiLanguage();
@@ -58,7 +62,7 @@ describe("GraphWidthPrompt", () => {
   });
 
   it("translates the mismatch and live switch without requesting or confirming twice", async () => {
-    window.localStorage.setItem("one-memory.gui-language", "es");
+    window.localStorage.setItem(LANGUAGE_STORAGE_KEY, "es");
     const user = userEvent.setup();
     render(
       <LanguageProvider>
@@ -92,7 +96,7 @@ describe("GraphWidthPrompt", () => {
         expect.any(String),
       ),
     );
-    window.localStorage.removeItem("one-memory.gui-language");
+    window.localStorage.removeItem(LANGUAGE_STORAGE_KEY);
   });
 
   it("moves focus into the modal and keeps Tab inside it", async () => {
diff --git a/memhub/apps/web/src/HealthPanel.test.tsx b/memhub/apps/web/src/HealthPanel.test.tsx
index 12d243b..e406702 100644
--- a/memhub/apps/web/src/HealthPanel.test.tsx
+++ b/memhub/apps/web/src/HealthPanel.test.tsx
@@ -12,7 +12,11 @@ import {
 import { StrictMode } from "react";
 import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
 
-import { LanguageProvider, useGuiLanguage } from "./gui-language";
+import {
+  LANGUAGE_STORAGE_KEY,
+  LanguageProvider,
+  useGuiLanguage,
+} from "./gui-language";
 import { HealthPanel } from "./HealthPanel";
 import type { ImportSourcesController } from "./use-import-sources";
 
@@ -37,7 +41,7 @@ function HealthLanguageSwitch() {
 
 it("shows supported diagnostics in Spanish without toggling logging", async () => {
   window.oneMemory = undefined;
-  localStorage.setItem("one-memory.gui-language", "es");
+  localStorage.setItem(LANGUAGE_STORAGE_KEY, "es");
   render(
     <LanguageProvider>
       <HealthLanguageSwitch />
@@ -676,7 +680,7 @@ describe("HealthPanel", () => {
     });
 
     it("read receipt timestamps follow the Spanish interface language", async () => {
-      localStorage.setItem("one-memory.gui-language", "es");
+      localStorage.setItem(LANGUAGE_STORAGE_KEY, "es");
       try {
         render(
           <LanguageProvider>
diff --git a/memhub/apps/web/src/ImportProgressStrip.test.tsx b/memhub/apps/web/src/ImportProgressStrip.test.tsx
index 694ff58..355282b 100644
--- a/memhub/apps/web/src/ImportProgressStrip.test.tsx
+++ b/memhub/apps/web/src/ImportProgressStrip.test.tsx
@@ -12,7 +12,11 @@ import userEvent from "@testing-library/user-event";
 import { useState } from "react";
 import { afterEach, describe, expect, it, vi } from "vitest";
 
-import { LanguageProvider, useGuiLanguage } from "./gui-language";
+import {
+  LANGUAGE_STORAGE_KEY,
+  LanguageProvider,
+  useGuiLanguage,
+} from "./gui-language";
 import { ImportProgressStrip } from "./ImportProgressStrip";
 
 function job(overrides: Partial<ImportJob> = {}): ImportJob {
@@ -86,7 +90,7 @@ describe("ImportProgressStrip", () => {
   afterEach(cleanup);
 
   it("translates user-facing progress and live settings CTA without invoking actions", async () => {
-    localStorage.setItem("one-memory.gui-language", "es");
+    localStorage.setItem(LANGUAGE_STORAGE_KEY, "es");
     const open = vi.fn();
     function Switch() {
       const { setPreference } = useGuiLanguage();
diff --git a/memhub/apps/web/src/call-history-client.test.ts b/memhub/apps/web/src/call-history-client.test.ts
index d66ea85..e4711c3 100644
--- a/memhub/apps/web/src/call-history-client.test.ts
+++ b/memhub/apps/web/src/call-history-client.test.ts
@@ -84,7 +84,7 @@ it("traduce entrega y límites sin atribuir adopción ni alterar anfitriones des
     "Parte del contenido sigue procesándose.",
   );
   expect(callReturnDeliveryLabel({ ...event, state: "unavailable" })).toBe(
-    "One Memory 暂时不可用，这次回答没有带上记忆。",
+    "MemHub 暂时不可用，这次回答没有带上记忆。",
   );
 });