refactor(#2302): type socket wire fields as ident, validated by serde on deserialize

hive-c0re/src/workers/crash_watch.rs

@@ -41,7 +41,7 @@ pub fn spawn(coord: Arc<Coordinator>) {
                 if lifecycle::is_running(&logical).await {
                     current_running.insert(logical.clone());
                 }
-                if hive_host_sock::Ident::parse(&logical)
+                if hive_types::Ident::parse(&logical)
                     .is_ok_and(|id| claude_has_session(&Coordinator::agent_claude_dir(&id)))
                 {
                     current_logged_in.insert(logical.clone());