huskies: merge 1169 story Gateway pulls signed artifacts from a release channel into its local store

server/src/chat/transport/matrix/bot/messages/on_room_message.rs

@@ -548,6 +548,33 @@ pub(in crate::chat::transport::matrix::bot) async fn on_room_message(
         return;
     }
 
+    // In gateway mode, handle the `pull <channel>` command: fetch, verify, and
+    // install a signed release-channel artifact into the artifact store.
+    if ctx.is_gateway()
+        && let Some(channel) = super::super::super::pull::extract_pull_command(
+            &user_message,
+            &ctx.services.bot_name,
+            ctx.matrix_user_id.as_str(),
+        )
+    {
+        slog!("[matrix-bot] Handling 'pull {channel}' from {sender}");
+        let response = if let Some(ref store) = ctx.gateway_channels_store {
+            super::super::super::pull::handle_pull(&channel, store).await
+        } else {
+            "Gateway release channels unavailable — cannot pull.".to_string()
+        };
+        let html = markdown_to_html(&response);
+        if let Ok(msg_id) = ctx
+            .transport
+            .send_message(&room_id_str, &response, &html)
+            .await
+            && let Ok(event_id) = msg_id.parse()
+        {
+            ctx.bot_sent_event_ids.lock().await.insert(event_id);
+        }
+        return;
+    }
+
     // In gateway mode, handle the `upgrade [<project>]` command to upgrade a
     // sled's binary in-container, streaming phase markers to the room.
     if ctx.is_gateway()