fix

backend/src/services/capability_sets.rs

@@ -1,6 +1,6 @@
 use axum::http::StatusCode;
 use chrono::Utc;
-use diesel::{pg::PgConnection, prelude::*, OptionalExtension};
+use diesel::{pg::PgConnection, prelude::*, Connection, OptionalExtension};
 use serde::{Deserialize, Serialize};
 use uuid::Uuid;
 
@@ -19,7 +19,6 @@ use crate::{
         capability_sets::{self, dsl as cs_dsl},
         user_memberships,
     },
-    services::TransactionExt,
     utils::text::normalize_identifier,
 };
 
@@ -156,7 +155,7 @@ impl CapabilitySetService {
             return ok_json(to_response(set, capabilities));
         }
 
-        let set = conn.app_transaction(|conn| {
+        let set = conn.transaction::<CapabilitySet, AppError, _>(|conn| {
             let mut working = set.clone();
 
             if let Some(slug) = &payload.slug {