feat(fleet): surface worker deliverables via summary and saved-session reply

crates/protocol/src/fleet.rs

@@ -1126,6 +1126,12 @@ pub struct FleetReceipt {
     /// existed) deserializable.
     #[serde(default, skip_serializing_if = "Option::is_none")]
     pub resolved_route: Option<FleetResolvedRoute>,
+    /// Saved exec session id holding the worker's full transcript, when the
+    /// worker persisted one on completion (the exec stream's
+    /// `session_capture.saved_session_id`). Callers resolve the final
+    /// assistant reply via `GET /v1/sessions/{id}`.
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub saved_session_id: Option<String>,
     /// Effective worker authority for this task (#3211).
     #[serde(default, skip_serializing_if = "Option::is_none")]
     pub effective_permissions: Option<FleetEffectivePermissions>,
@@ -1493,6 +1499,7 @@ mod tests {
                 notes: None,
             }),
             resolved_route: None,
+            saved_session_id: None,
             effective_permissions: None,
         };
         let json = serde_json::to_string(&receipt).unwrap();
@@ -1521,6 +1528,7 @@ mod tests {
                 notes: Some("manual verification required".to_string()),
             }),
             resolved_route: None,
+            saved_session_id: None,
             effective_permissions: None,
         };
 
@@ -1689,6 +1697,7 @@ mod tests {
                 model_source: Some("task.model".to_string()),
                 source: "resolver".to_string(),
             }),
+            saved_session_id: None,
             effective_permissions: Some(FleetEffectivePermissions {
                 write: true,
                 network: true,

crates/tui/src/exec_agent.rs

@@ -937,6 +937,7 @@ pub(crate) async fn run_exec_agent(
                     if let Some(id) = saved_session_id.as_ref() {
                         emit_exec_stream_event(&ExecStreamEvent::SessionCapture {
                             content: exec_stream_session_ref(id),
+                            saved_session_id: id.clone(),
                         })?;
                     }
                     // Resolved output ceiling and its provenance, surfaced so a
@@ -954,6 +955,12 @@ pub(crate) async fn run_exec_agent(
                             &latest_model,
                         )
                         .as_str();
+                    // The deliverable is the final assistant reply of the
+                    // session, not the cumulative stream output: a
+                    // multi-step turn streams pre-tool commentary first,
+                    // and that commentary is not part of the answer.
+                    let final_answer = exec_stream_final_answer_text(&latest_messages)
+                        .unwrap_or_else(|| summary.output.trim().to_string());
                     emit_exec_stream_event(&ExecStreamEvent::Metadata {
                         meta: Box::new(ExecStreamMeta {
                             receipt_kind: "terminal",
@@ -988,7 +995,10 @@ pub(crate) async fn run_exec_agent(
                                 &latest_messages,
                                 latest_system_prompt.as_ref(),
                             ),
-                            visible_final_answer_chars: summary.output.chars().count(),
+                            visible_final_answer_chars: final_answer.chars().count(),
+                            visible_final_answer_excerpt: exec_stream_final_answer_excerpt(
+                                &final_answer,
+                            ),
                             resume_command: saved_session_id
                                 .as_deref()
                                 .map(exec_stream_resume_hint)

crates/tui/src/fleet/alerts.rs

@@ -715,6 +715,7 @@ mod tests {
                 notes: Some("regex scorer could not be compiled".to_string()),
             }),
             resolved_route: None,
+            saved_session_id: None,
             effective_permissions: None,
         };
 

crates/tui/src/fleet/control.rs

@@ -753,6 +753,7 @@ mod tests {
                 model_source: None,
                 source: "resolver".to_string(),
             }),
+            saved_session_id: None,
             effective_permissions: None,
         }
     }