feat: add media save guide

src/components/messageStream/bubbles/FileDocBubble.tsx

@@ -9,11 +9,16 @@ import { filenameWithExtension, splitFilename } from "../utils/filenameDisplay";
 import { formatBytes } from "../utils/formatBytes";
 import { postDisplayText } from "../utils/postText";
 import { CollapsibleText } from "../CollapsibleText";
+import {
+  mediaSaveKindFromAttachment,
+  useSaveToAlbumGuide,
+} from "../../SaveToAlbumGuide";
 import { useToast } from "../../Toast";
 
 function AttachmentRow({ postId, att }: { postId: string; att: Attachment }) {
   const { t } = useI18n();
   const { showToast } = useToast();
+  const { showSaveToAlbumGuide } = useSaveToAlbumGuide();
   const { Icon, color } = fileIcon({ mime: att.mime, filename: att.filename });
   const displayFilename = filenameWithExtension(att.filename, att.mime);
   const [isDownloading, setIsDownloading] = useState(false);
@@ -24,6 +29,8 @@ function AttachmentRow({ postId, att }: { postId: string; att: Attachment }) {
     setIsDownloading(true);
     try {
       await downloadAttachment(postId, att.id, displayFilename);
+      const mediaKind = mediaSaveKindFromAttachment(att);
+      if (mediaKind) showSaveToAlbumGuide(mediaKind);
     } catch {
       showToast(t("downloadFail"), "error");
     } finally {