fix: Navbar JSX parent element

Author: CodeJudge

frontend/src/components/Navbar.tsx

@@ -116,7 +116,7 @@ export default function Navbar() {
                 <User className="w-4 h-4" />
                 <span className="text-sm font-medium">{user.username}</span>
               </Link>
-              {user.role === 'admin' && (
+              {user.role === 'admin' && (<>
                 <Link
                   to="/admin"
                   className="flex items-center gap-1.5 px-3 py-1.5 rounded-lg text-xs font-medium bg-primary-600/15 text-primary-400 border border-primary-600/30 hover:bg-primary-600/25 transition-colors"
@@ -127,7 +127,7 @@ export default function Navbar() {
                 <Link to="/system" className="flex items-center gap-1.5 px-3 py-1.5 rounded-lg text-xs font-medium bg-blue-600/15 text-blue-400 border border-blue-600/30 hover:bg-blue-600/25 transition-colors">
                   <Activity className="w-3.5 h-3.5" /> 系统
                 </Link>
-              )}
+              </>)}
               <button
                 onClick={logout}
                 className="flex items-center gap-1.5 px-3 py-1.5 rounded-lg text-sm text-dark-400 hover:text-dark-200 hover:bg-dark-800 transition-colors"

frontend/tsconfig.tsbuildinfo

@@ -1 +1 @@
-{"root":["./src/app.tsx","./src/main.tsx","./src/components/choicequestion.tsx","./src/components/codeeditor.tsx","./src/components/errorboundary.tsx","./src/components/fillblankquestion.tsx","./src/components/footer.tsx","./src/components/gamificationsection.tsx","./src/components/keyboardshortcuts.tsx","./src/components/markdownrenderer.tsx","./src/components/navbar.tsx","./src/components/problemcard.tsx","./src/components/submissionstatus.tsx","./src/context/authcontext.tsx","./src/context/bookmarkcontext.tsx","./src/hooks/usedocumenttitle.ts","./src/pages/admin.tsx","./src/pages/adminproblemform.tsx","./src/pages/home.tsx","./src/pages/leaderboard.tsx","./src/pages/login.tsx","./src/pages/notfound.tsx","./src/pages/problemdetail.tsx","./src/pages/problems.tsx","./src/pages/profile.tsx","./src/pages/register.tsx","./src/pages/submissions.tsx","./src/pages/systemhealth.tsx","./src/services/api.ts","./src/types/index.ts"],"errors":true,"version":"5.9.3"}
+{"root":["./src/app.tsx","./src/main.tsx","./src/components/choicequestion.tsx","./src/components/codeeditor.tsx","./src/components/errorboundary.tsx","./src/components/fillblankquestion.tsx","./src/components/footer.tsx","./src/components/gamificationsection.tsx","./src/components/keyboardshortcuts.tsx","./src/components/markdownrenderer.tsx","./src/components/navbar.tsx","./src/components/problemcard.tsx","./src/components/submissionstatus.tsx","./src/context/authcontext.tsx","./src/context/bookmarkcontext.tsx","./src/hooks/usedocumenttitle.ts","./src/pages/admin.tsx","./src/pages/adminproblemform.tsx","./src/pages/home.tsx","./src/pages/leaderboard.tsx","./src/pages/login.tsx","./src/pages/notfound.tsx","./src/pages/problemdetail.tsx","./src/pages/problems.tsx","./src/pages/profile.tsx","./src/pages/register.tsx","./src/pages/submissions.tsx","./src/pages/systemhealth.tsx","./src/services/api.ts","./src/types/index.ts"],"version":"5.9.3"}