Update hashtag routing in NoteContent and enhance hashtag search logic in useHashtagFeed

src/components/NoteContent.test.tsx

@@ -98,8 +98,8 @@ describe('NoteContent', () => {
     
     expect(nostrHashtag).toBeInTheDocument();
     expect(bitcoinHashtag).toBeInTheDocument();
-    expect(nostrHashtag).toHaveAttribute('href', '/t/nostr');
-    expect(bitcoinHashtag).toHaveAttribute('href', '/t/bitcoin');
+    expect(nostrHashtag).toHaveAttribute('href', '/tag/nostr');
+    expect(bitcoinHashtag).toHaveAttribute('href', '/tag/bitcoin');
   });
 
   it('generates deterministic names for users without metadata and styles them differently', () => {

src/components/NoteContent.tsx

@@ -83,7 +83,7 @@ export function NoteContent({
         parts.push(
           <Link 
             key={`hashtag-${keyCounter++}`}
-            to={`/t/${tag}`}
+            to={`/tag/${tag}`}
             className="text-blue-500 hover:underline"
           >
             {hashtag}

src/hooks/useHashtagFeed.ts

@@ -8,13 +8,18 @@ import type { NostrEvent } from '@nostrify/nostrify';
 export function useHashtagFeed(hashtag: string) {
   const { nostr } = useNostr();
   const normalizedTag = hashtag.toLowerCase();
+  
+  // Search for both normalized and original tag if they differ
+  const tagsToSearch = normalizedTag === hashtag 
+    ? [normalizedTag] 
+    : [normalizedTag, hashtag];
 
   return useInfiniteQuery({
     queryKey: ['hashtag-feed', normalizedTag],
     queryFn: async ({ pageParam, signal }) => {
       const filter = pageParam
-        ? { kinds: [20], '#t': [normalizedTag], limit: 20, until: pageParam as number }
-        : { kinds: [20], '#t': [normalizedTag], limit: 20 };
+        ? { kinds: [20], '#t': tagsToSearch, limit: 20, until: pageParam as number }
+        : { kinds: [20], '#t': tagsToSearch, limit: 20 };
 
       const events = await nostr.query([filter], {
         signal: AbortSignal.any([signal, AbortSignal.timeout(1500)])