refactor: 菜单栏角色化降噪（role-based-navigation-simplification）

client/tests/e2e/r75-automation-gap-fill.spec.ts

@@ -387,7 +387,7 @@ test.describe("R75 自动化补盲", () => {
 
       await login(page, ADMIN);
       await page.goto("/system/feature-flags");
-      await expect(page.getByRole("heading", { name: "功能开关" })).toBeVisible();
+      await expect(page.getByRole("heading", { name: "功能管理" })).toBeVisible();
 
       const row = page.getByTestId(`feature-flag-row-${flagKey}`);
       await expect(row).toBeVisible();