huskies: merge 1033

server/src/chat/transport/matrix/bot/run.rs

@@ -295,6 +295,34 @@ pub async fn run_bot(
         );
     }
 
+    // Subscribe to pipeline stage transitions and buffer compact audit lines
+    // between Timmy's turns.  Replay events (before == after stage label) are
+    // silently dropped — only real transitions are recorded.
+    let pending_pipeline_events: Arc<TokioMutex<Vec<String>>> =
+        Arc::new(TokioMutex::new(Vec::new()));
+    {
+        use crate::pipeline_state::{format_audit_entry, stage_label, subscribe_transitions};
+        let mut rx = subscribe_transitions();
+        let buf = Arc::clone(&pending_pipeline_events);
+        tokio::spawn(async move {
+            loop {
+                match rx.recv().await {
+                    Ok(fired) => {
+                        if stage_label(&fired.before) == stage_label(&fired.after) {
+                            continue;
+                        }
+                        let line = format_audit_entry(&fired);
+                        buf.lock().await.push(line);
+                    }
+                    Err(tokio::sync::broadcast::error::RecvError::Lagged(n)) => {
+                        slog!("[matrix-bot] pipeline event buffer lagged by {n} events");
+                    }
+                    Err(tokio::sync::broadcast::error::RecvError::Closed) => break,
+                }
+            }
+        });
+    }
+
     let ctx = BotContext {
         services,
         matrix_user_id: bot_user_id,
@@ -309,6 +337,7 @@ pub async fn run_bot(
         gateway_active_project,
         gateway_projects,
         gateway_project_urls,
+        pending_pipeline_events,
     };
 
     slog!(