formatting and linting work

src/routes/apiRoutes.js

@@ -45,7 +45,7 @@ router.get('/signup/nostr-challenge', async (req, res) => {
   } catch (error) {
     return res.status(500).json({
       success: false,
-      message: 'Unexpected error.',
+      message: `Unexpected error: ${error}`,
     });
   }