Add reply context to notifications and make it DRY with feed

- Created shared ReplyContext component for consistent reply rendering
- Updated NoteCard to use shared ReplyContext component
- Added reply detection logic to ReferencedPostCard in notifications
- Added reply context rendering for liked/reposted/zapped posts in notifications
- Removed duplicate ReplyContext implementations
- Ensures "Replying to @username" appears consistently across feed and notifications

Co-authored-by: shakespeare.diy <assistant@shakespeare.diy>

src/components/NoteCard.tsx

@@ -13,6 +13,7 @@ import { FoundLogContent } from '@/components/FoundLogContent';
 import { ColorMomentContent } from '@/components/ColorMomentContent';
 import { FollowPackContent } from '@/components/FollowPackContent';
 import { ChestIcon } from '@/components/icons/ChestIcon';
+import { ReplyContext } from '@/components/ReplyContext';
 import { useAuthor } from '@/hooks/useAuthor';
 import { useCurrentUser } from '@/hooks/useCurrentUser';
 import { useEventStats } from '@/hooks/useTrending';
@@ -508,20 +509,4 @@ function TreasureHeader({ pubkey, variant }: { pubkey: string; variant: 'hid' |
   );
 }
 
-function ReplyContext({ pubkey }: { pubkey: string }) {
-  const author = useAuthor(pubkey);
-  const name = author.data?.metadata?.name || genUserName(pubkey);
 
-  return (
-    <div className="flex items-center text-sm text-muted-foreground mt-2 mb-1">
-      <span className="mr-1">Replying to</span>
-      {author.isLoading ? (
-        <Skeleton className="h-3.5 w-20 inline-block" />
-      ) : (
-        <Link to={`/${nip19.npubEncode(pubkey)}`} className="text-primary hover:underline" onClick={(e) => e.stopPropagation()}>
-          @{name}
-        </Link>
-      )}
-    </div>
-  );
-}

src/components/ReplyContext.tsx

@@ -0,0 +1,33 @@
+import { Link } from 'react-router-dom';
+import { nip19 } from 'nostr-tools';
+
+import { Skeleton } from '@/components/ui/skeleton';
+import { useAuthor } from '@/hooks/useAuthor';
+import { genUserName } from '@/lib/genUserName';
+
+interface ReplyContextProps {
+  pubkey: string;
+  className?: string;
+}
+
+/**
+ * Displays "Replying to @username" context for reply posts.
+ * Used consistently across NoteCard and notification views.
+ */
+export function ReplyContext({ pubkey, className }: ReplyContextProps) {
+  const author = useAuthor(pubkey);
+  const name = author.data?.metadata?.name || genUserName(pubkey);
+
+  return (
+    <div className={className || 'flex items-center text-sm text-muted-foreground mt-2 mb-1'}>
+      <span className="mr-1">Replying to</span>
+      {author.isLoading ? (
+        <Skeleton className="h-3.5 w-20 inline-block" />
+      ) : (
+        <Link to={`/${nip19.npubEncode(pubkey)}`} className="text-primary hover:underline" onClick={(e) => e.stopPropagation()}>
+          @{name}
+        </Link>
+      )}
+    </div>
+  );
+}

src/pages/NotificationsPage.tsx

@@ -16,6 +16,7 @@ import { RepostMenu } from '@/components/RepostMenu';
 import { NoteMoreMenu } from '@/components/NoteMoreMenu';
 import { ReplyComposeModal } from '@/components/ReplyComposeModal';
 import { ZapDialog } from '@/components/ZapDialog';
+import { ReplyContext } from '@/components/ReplyContext';
 import { useCurrentUser } from '@/hooks/useCurrentUser';
 import { useAuthor } from '@/hooks/useAuthor';
 import { useEvent } from '@/hooks/useEvent';
@@ -321,6 +322,27 @@ function ReferencedPostCard({ event }: { event: NostrEvent }) {
   const [moreMenuOpen, setMoreMenuOpen] = useState(false);
   const [replyOpen, setReplyOpen] = useState(false);
 
+  // Check if this is a reply and find the person being replied to
+  const isReply = event.tags.some(([name]) => name === 'e');
+  const replyTo = isReply ? (() => {
+    // First try to find a p tag that's not a mention
+    const directReply = event.tags.find(([name, , , marker]) => name === 'p' && marker !== 'mention');
+    if (directReply) return directReply;
+    
+    // If no direct reply p tag, check if there's a root or reply e tag with a pubkey
+    const rootOrReply = event.tags.find(([name, , , marker]) => 
+      name === 'e' && (marker === 'root' || marker === 'reply')
+    );
+    if (rootOrReply?.[4]) {
+      // Return a p tag format with the pubkey from the e tag
+      return ['p', rootOrReply[4]];
+    }
+    
+    // Fallback: if this is a reply but all p tags are mentions, use the first p tag anyway
+    const firstP = event.tags.find(([name]) => name === 'p');
+    return firstP;
+  })() : undefined;
+
   const handleNavigate = useCallback(() => {
     navigate(`/${encodedId}`);
   }, [navigate, encodedId]);
@@ -330,6 +352,11 @@ function ReferencedPostCard({ event }: { event: NostrEvent }) {
       className="cursor-pointer"
       onClick={handleNavigate}
     >
+      {/* Reply context */}
+      {isReply && replyTo?.[1] && (
+        <ReplyContext pubkey={replyTo[1]} />
+      )}
+
       {/* Author row */}
       <div className="flex items-center gap-3">
         <Link to={`/${npub}`} className="shrink-0" onClick={(e) => e.stopPropagation()}>
@@ -584,27 +611,6 @@ function ActionButtons({
   );
 }
 
-// ──────────────────────────────────────
-// Reply Context: "Replying to @{name} and @{name}"
-// ──────────────────────────────────────
-function ReplyContext({ pubkey }: { pubkey: string }) {
-  const author = useAuthor(pubkey);
-  const name = author.data?.metadata?.name || genUserName(pubkey);
-
-  return (
-    <div className="flex items-center gap-1.5 text-sm text-muted-foreground mb-1">
-      <span>Replying to</span>
-      <Link
-        to={`/${nip19.npubEncode(pubkey)}`}
-        className="text-primary hover:underline"
-        onClick={(e) => e.stopPropagation()}
-      >
-        @{name}
-      </Link>
-    </div>
-  );
-}
-
 // ──────────────────────────────────────
 // Skeleton Loader
 // ──────────────────────────────────────