fix(custom-cli): le bouton Stop annule le tour courant sans fermer la session et cascade l'annulation aux agents délégués — stop_agent suit l'arbre des dépendances actives (cancel_current_turn + préemption runtime + enfants d'exécution), TurnCancel tue le process du tour en cours, autorisation requester/sous-arbre sur idea_stop_agent, fixtures DTO runtime_state/node_id alignées — #257 (QA verte)

crates/infrastructure/src/orchestrator/mcp/tools.rs

@@ -492,6 +492,7 @@ pub fn map_tool_call(
         },
         "idea_stop_agent" => OrchestratorRequest {
             request_type: Some("agent.stop".to_owned()),
+            requested_by: Some(requester.to_owned()),
             target_agent: s("target"),
             ..base()
         },
@@ -840,7 +841,8 @@ mod tests {
         assert_eq!(
             map("idea_stop_agent", &json!({ "target": "Dev" })).unwrap(),
             OrchestratorCommand::StopAgent {
-                name: "Dev".to_owned()
+                name: "Dev".to_owned(),
+                requester: None,
             }
         );
         assert_eq!(
@@ -868,6 +870,19 @@ mod tests {
         );
     }
 
+    #[test]
+    fn stop_agent_maps_handshake_requester_for_authorization() {
+        assert_eq!(
+            map_tool_call("idea_stop_agent", &json!({ "target": "Dev" }), REQ).unwrap(),
+            OrchestratorCommand::StopAgent {
+                name: "Dev".to_owned(),
+                requester: Some(domain::AgentId::from_uuid(
+                    uuid::Uuid::parse_str(REQ).unwrap()
+                )),
+            }
+        );
+    }
+
     #[test]
     fn missing_required_field_surfaces_validation_error() {
         let err = map("idea_update_context", &json!({ "target": "Architect" }));