fix(transfer): hide transferred label on trash board posts

Posts moved to /trash/ should not show the transferred tag since the move is the intended outcome.

src/components/__tests__/post-transferred-tag.test.tsx

@@ -2,6 +2,7 @@ import * as React from 'react';
 import { createElement } from 'react';
 import { createRoot, type Root } from 'react-dom/client';
 import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
+import { TRASH_BOARD_ADDRESS } from '../../lib/special-boards';
 import PostTransferredTag from '../post-transferred-tag';
 
 (globalThis as { IS_REACT_ACT_ENVIRONMENT?: boolean }).IS_REACT_ACT_ENVIRONMENT = true;
@@ -36,6 +37,22 @@ describe('PostTransferredTag', () => {
     expect(container.textContent).toBe('[Transferred] ');
   });
 
+  it('does not render the transferred label for posts moved to trash', async () => {
+    await act(async () => {
+      root.render(
+        createElement(PostTransferredTag, {
+          comment: {
+            commentModeration: { flairs: [{ text: '5chan:transferred' }] },
+            communityAddress: TRASH_BOARD_ADDRESS,
+            title: 'Original title',
+          },
+        }),
+      );
+    });
+
+    expect(container.textContent).toBe('');
+  });
+
   it('ignores user-authored transferred-looking flairs', async () => {
     await act(async () => {
       root.render(createElement(PostTransferredTag, { comment: { flairs: [{ text: '5chan:transferred' }] } }));

src/components/post-transferred-tag.tsx

@@ -1,5 +1,7 @@
 import { useTranslation } from 'react-i18next';
 import { hasTransferredCommentMarker } from '../lib/comment-transfer';
+import { getSpecialBoardByAddress, TRASH_BOARD_CODE } from '../lib/special-boards';
+import { getCommentCommunityAddress } from '../lib/utils/comment-utils';
 import styles from './post-transferred-tag.module.css';
 
 interface PostTransferredTagProps {
@@ -10,6 +12,9 @@ const PostTransferredTag = ({ comment }: PostTransferredTagProps) => {
   const { t } = useTranslation();
 
   if (!hasTransferredCommentMarker(comment)) return null;
+  if (getSpecialBoardByAddress(getCommentCommunityAddress(comment))?.directoryCode === TRASH_BOARD_CODE) {
+    return null;
+  }
 
   return (
     <span className={styles.transferredTag} title={t('transferred')}>