feat: improve structure and error handling

server/index.ts

@@ -1,9 +1,8 @@
-import { router } from "./trpc"
-
 /** Routers */
 import { contentstackRouter } from "./routers/contentstack"
-import { userRouter } from "./routers/user"
 import { loyaltyRouter } from "./routers/loyalty"
+import { userRouter } from "./routers/user"
+import { router } from "./trpc"
 
 export const appRouter = router({
   contentstack: contentstackRouter,