fix: more friendly interface to get service error (#190)

crates/rmcp/src/service/tower.rs

@@ -2,12 +2,11 @@ use std::{future::poll_fn, marker::PhantomData};
 
 use tower_service::Service as TowerService;
 
-use crate::service::{Peer, RequestContext, Service, ServiceRole};
+use crate::service::{RequestContext, Service, ServiceRole};
 
 pub struct TowerHandler<S, R: ServiceRole> {
     pub service: S,
     pub info: R::Info,
-    pub peer: Option<Peer<R>>,
     role: PhantomData<R>,
 }
 
@@ -17,7 +16,6 @@ impl<S, R: ServiceRole> TowerHandler<S, R> {
             service,
             role: PhantomData,
             info,
-            peer: None,
         }
     }
 }
@@ -48,14 +46,6 @@ where
         std::future::ready(Ok(()))
     }
 
-    fn get_peer(&self) -> Option<Peer<R>> {
-        self.peer.clone()
-    }
-
-    fn set_peer(&mut self, peer: Peer<R>) {
-        self.peer = Some(peer);
-    }
-
     fn get_info(&self) -> R::Info {
         self.info.clone()
     }