fix: chat accepts posts

components/chat/message-attachments.tsx

@@ -18,6 +18,7 @@ import { LinkPreviewCard } from "@/components/chat/link-preview-card";
 import { MediaGrid } from "@/components/chat/media-grid";
 import { MediaLightbox } from "@/components/chat/media-lightbox";
 import { QuoteCard } from "@/components/chat/quote-card";
+import { SharedPostCard } from "@/components/chat/shared-post-card";
 import { attachmentUrl, type Attachment } from "@/lib/chat";
 
 function humanSize(bytes?: number | null): string {
@@ -58,6 +59,9 @@ export function MessageAttachments({
 
         {rest.map((a) => {
           switch (a.kind) {
+            case "entity":
+              return <SharedPostCard key={a.id} attachment={a} />;
+
             case "quote":
               return <QuoteCard key={a.id} attachment={a} />;