story-kit: merge 86_story_show_live_activity_status_instead_of_static_thinking_indicator_in_chat

server/src/http/ws.rs

@@ -75,6 +75,10 @@ enum WsResponse {
         tool_name: String,
         tool_input: serde_json::Value,
     },
+    /// The agent started assembling a tool call; shows live status in the UI.
+    ToolActivity {
+        tool_name: String,
+    },
 }
 
 impl From<WatcherEvent> for WsResponse {
@@ -168,6 +172,7 @@ pub async fn ws_handler(ws: WebSocket, ctx: Data<&Arc<AppContext>>) -> impl poem
                 Ok(WsRequest::Chat { messages, config }) => {
                     let tx_updates = tx.clone();
                     let tx_tokens = tx.clone();
+                    let tx_activity = tx.clone();
                     let ctx_clone = ctx.clone();
                     let perm_tx = perm_req_tx.clone();
 
@@ -188,6 +193,11 @@ pub async fn ws_handler(ws: WebSocket, ctx: Data<&Arc<AppContext>>) -> impl poem
                                 content: token.to_string(),
                             });
                         },
+                        move |tool_name: &str| {
+                            let _ = tx_activity.send(WsResponse::ToolActivity {
+                                tool_name: tool_name.to_string(),
+                            });
+                        },
                         Some(perm_tx),
                     );
                     tokio::pin!(chat_fut);