Fix: Wrap useAuth in AuthProvider

src/hooks/useAuth.tsx

@@ -241,6 +241,7 @@ export const AuthProvider = AuthProviderComponent;
 export function useAuth() {
   const context = useContext(AuthContext);
   if (context === undefined) {
+    console.error('[useAuth] AuthContext is undefined - component may be rendering outside AuthProvider');
     throw new Error('useAuth must be used within an AuthProvider');
   }
   return context;