fix: improve error handling

- Do not throw in onError callback for server client. This lets the originating error bubble to Next.js.
- Do not log errors inside the service token procedure, server client onError callback will log all procedure errors.
- Log errors for fetching service token failure.

lib/trpc/server.ts

@@ -50,8 +50,6 @@ export function serverClient() {
           redirect(redirectUrl)
         }
       }
-
-      throw internalServerError()
     },
   })
 }