Add repost/comment to article view, redesign audio cards in feed

Article view:
- Repost button in header and footer (kind-6 repost)
- Comment button opens inline input, publishes note with naddr reference
- Footer comment scrolls to top to show input

Audio cards:
- Replace inline <audio> elements with styled play cards
- Clean filename display (decode URI, strip extension, humanize separators)
- Single click loads into persistent podcast player
- Eliminates buffering spinners from slow podcast CDNs

src/components/article/ArticleView.tsx

@@ -4,7 +4,8 @@ import { renderMarkdown } from "../../lib/markdown";
 import { useUIStore } from "../../stores/ui";
 import { useUserStore } from "../../stores/user";
 import { useBookmarkStore } from "../../stores/bookmark";
-import { fetchArticle, publishReaction } from "../../lib/nostr";
+import { fetchArticle, publishReaction, publishRepost, publishNote } from "../../lib/nostr";
+import { nip19 } from "@nostr-dev-kit/ndk";
 import { useProfile } from "../../hooks/useProfile";
 import { ZapModal } from "../zap/ZapModal";
 
@@ -73,6 +74,9 @@ export function ArticleView() {
   const [error, setError] = useState<string | null>(null);
   const [showZap, setShowZap] = useState(false);
   const [reacted, setReacted] = useState(false);
+  const [reposted, setReposted] = useState(false);
+  const [showComment, setShowComment] = useState(false);
+  const [commentText, setCommentText] = useState("");
   const { isBookmarked, addBookmark, removeBookmark } = useBookmarkStore();
 
   const naddr = pendingArticleNaddr ?? "";
@@ -197,6 +201,28 @@ export function ArticleView() {
     else addBookmark(event.id);
   };
 
+  const handleRepost = async () => {
+    if (!event || reposted) return;
+    setReposted(true);
+    try {
+      await publishRepost(event);
+    } catch {
+      setReposted(false);
+    }
+  };
+
+  const handleComment = async () => {
+    if (!event || !commentText.trim()) return;
+    const dTag = event.tags.find((t) => t[0] === "d")?.[1] ?? "";
+    const naddrStr = nip19.naddrEncode({ identifier: dTag, pubkey: event.pubkey, kind: 30023 });
+    const text = `${commentText.trim()}\n\nnostr:${naddrStr}`;
+    try {
+      await publishNote(text);
+      setCommentText("");
+      setShowComment(false);
+    } catch { /* ignore */ }
+  };
+
   return (
     <div className="h-full flex flex-col">
       {/* Header */}
@@ -226,6 +252,31 @@ export function ArticleView() {
               ⚡ zap {authorName}
             </button>
           )}
+          {event && loggedIn && (
+            <button
+              onClick={handleRepost}
+              disabled={reposted}
+              className={`text-[11px] px-3 py-1 border transition-colors ${
+                reposted
+                  ? "border-accent/40 text-accent"
+                  : "border-border text-text-muted hover:text-accent hover:border-accent/40"
+              }`}
+            >
+              {reposted ? "reposted" : "repost"}
+            </button>
+          )}
+          {event && loggedIn && (
+            <button
+              onClick={() => setShowComment(!showComment)}
+              className={`text-[11px] px-3 py-1 border transition-colors ${
+                showComment
+                  ? "border-accent/40 text-accent"
+                  : "border-border text-text-muted hover:text-accent hover:border-accent/40"
+              }`}
+            >
+              comment
+            </button>
+          )}
           {naddr && (
             <button
               onClick={() => navigator.clipboard.writeText(`nostr:${naddr}`)}
@@ -238,6 +289,28 @@ export function ArticleView() {
         </div>
       </header>
 
+      {/* Comment box */}
+      {showComment && event && (
+        <div className="border-b border-border px-4 py-3 flex gap-2 shrink-0">
+          <input
+            type="text"
+            value={commentText}
+            onChange={(e) => setCommentText(e.target.value)}
+            onKeyDown={(e) => e.key === "Enter" && handleComment()}
+            placeholder="Write a comment about this article..."
+            className="flex-1 bg-bg-raised border border-border rounded-sm px-3 py-1.5 text-[12px] text-text placeholder:text-text-dim focus:outline-none focus:border-accent"
+            autoFocus
+          />
+          <button
+            onClick={handleComment}
+            disabled={!commentText.trim()}
+            className="px-3 py-1.5 bg-accent/10 text-accent text-[12px] rounded-sm hover:bg-accent/20 transition-colors disabled:opacity-40"
+          >
+            post
+          </button>
+        </div>
+      )}
+
       {/* Body */}
       <div ref={scrollRef} className="flex-1 overflow-y-auto">
         {/* Reading progress bar */}
@@ -346,6 +419,27 @@ export function ArticleView() {
                       {bookmarked ? "▪ saved" : "▫ save"}
                     </button>
                   )}
+                  {loggedIn && (
+                    <button
+                      onClick={handleRepost}
+                      disabled={reposted}
+                      className={`text-[11px] px-3 py-1.5 border transition-colors ${
+                        reposted
+                          ? "border-accent/40 text-accent"
+                          : "border-border text-text-muted hover:text-accent hover:border-accent/40"
+                      }`}
+                    >
+                      {reposted ? "reposted" : "repost"}
+                    </button>
+                  )}
+                  {loggedIn && (
+                    <button
+                      onClick={() => { setShowComment(true); scrollRef.current?.scrollTo({ top: 0, behavior: "smooth" }); }}
+                      className="text-[11px] px-3 py-1.5 border border-border text-text-muted hover:text-accent hover:border-accent/40 transition-colors"
+                    >
+                      comment
+                    </button>
+                  )}
                   {loggedIn && (
                     <button
                       onClick={() => setShowZap(true)}

src/components/feed/MediaCards.tsx

@@ -20,38 +20,53 @@ export function VideoBlock({ sources }: { sources: string[] }) {
   );
 }
 
+function cleanAudioName(url: string): string {
+  const raw = url.split("/").pop()?.split("?")[0] ?? url;
+  // Remove file extension
+  const name = raw.replace(/\.(mp3|m4a|ogg|opus|wav|flac|aac)$/i, "");
+  // Decode URI components and replace common separators with spaces
+  try {
+    return decodeURIComponent(name).replace(/[-_]+/g, " ");
+  } catch {
+    return name.replace(/[-_]+/g, " ");
+  }
+}
+
 export function AudioBlock({ sources }: { sources: string[] }) {
   const play = usePodcastStore((s) => s.play);
   if (sources.length === 0) return null;
   return (
     <div className="mt-2 flex flex-col gap-2">
       {sources.map((src, i) => {
-        const filename = src.split("/").pop()?.split("?")[0] ?? src;
+        const name = cleanAudioName(src);
         return (
-          <div key={i} className="rounded-sm bg-bg-raised border border-border p-2">
-            <div className="flex items-center justify-between mb-1">
-              <div className="text-[11px] text-text-muted truncate">{filename}</div>
-              <button
-                onClick={(e) => {
-                  e.stopPropagation();
-                  play({
-                    guid: `audio:${src}`,
-                    title: filename,
-                    enclosureUrl: src,
-                    pubDate: 0,
-                    duration: 0,
-                    description: "",
-                    showTitle: "From note",
-                    showArtworkUrl: "",
-                  });
-                }}
-                className="text-[10px] text-accent hover:text-accent-hover transition-colors shrink-0 ml-2"
-              >
-                play in wrystr
-              </button>
+          <button
+            key={i}
+            onClick={(e) => {
+              e.stopPropagation();
+              play({
+                guid: `audio:${src}`,
+                title: name,
+                enclosureUrl: src,
+                pubDate: 0,
+                duration: 0,
+                description: "",
+                showTitle: "",
+                showArtworkUrl: "",
+              });
+            }}
+            className="rounded-sm bg-bg-raised border border-border p-3 flex items-center gap-3 hover:bg-bg-hover transition-colors text-left w-full"
+          >
+            <div className="w-8 h-8 rounded-full bg-accent/10 flex items-center justify-center shrink-0">
+              <svg width="10" height="12" viewBox="0 0 10 12" fill="currentColor" className="text-accent ml-0.5">
+                <polygon points="0,0 10,6 0,12" />
+              </svg>
             </div>
-            <audio controls preload="metadata" className="w-full h-8" src={src} />
-          </div>
+            <div className="min-w-0 flex-1">
+              <div className="text-[12px] text-text truncate">{name}</div>
+              <div className="text-[10px] text-text-dim">audio · play in wrystr</div>
+            </div>
+          </button>
         );
       })}
     </div>