fix: clarify multi-document downloads

src/components/messageStream/MessageBubble.tsx

@@ -9,6 +9,7 @@ import { VideoBubble } from "./bubbles/VideoBubble";
 import { LinkPreviewCard } from "./LinkPreviewCard";
 import { formatDateTime } from "./utils/formatTime";
 import { FavoriteButton } from "../../favorites/FavoriteButton";
+import { BubbleAttachmentDownloadButton } from "./BubbleAttachmentDownloadButton";
 
 export type MessageBubbleVariant = "default" | "latest";
 
@@ -106,6 +107,12 @@ export function MessageBubble({
                   onFavoriteChange?.(post.id, favorited)
                 }
               />
+              {isFileBubble && post.attachments.length === 1 ? (
+                <BubbleAttachmentDownloadButton
+                  postId={post.id}
+                  attachment={post.attachments[0]}
+                />
+              ) : null}
             </div>
           </div>
         ) : null}