feat: Pruned dead UI, renamed view toggle to Oldest/Newest first, added…

- "frontend/src/pages/AdminPipeline.tsx"
- "frontend/src/App.css"

GSD-Task: S04/T02

frontend/src/App.css

@@ -2776,6 +2776,20 @@ a.app-footer__repo:hover {
   white-space: nowrap;
 }
 
+.pipeline-video__review-link {
+  color: var(--color-accent);
+  font-size: 0.75rem;
+  text-decoration: none;
+  white-space: nowrap;
+  opacity: 0.7;
+  transition: opacity 0.15s;
+}
+
+.pipeline-video__review-link:hover {
+  opacity: 1;
+  text-decoration: underline;
+}
+
 .pipeline-video__actions {
   display: flex;
   gap: 0.375rem;

frontend/src/pages/AdminPipeline.tsx

@@ -245,16 +245,15 @@ function EventLog({ videoId }: { videoId: string }) {
             className={`pipeline-events__view-btn${viewMode === "head" ? " pipeline-events__view-btn--active" : ""}`}
             onClick={() => { setViewMode("head"); setOffset(0); }}
           >
-            Head
+            Oldest first
           </button>
           <button
             className={`pipeline-events__view-btn${viewMode === "tail" ? " pipeline-events__view-btn--active" : ""}`}
             onClick={() => { setViewMode("tail"); setOffset(0); }}
           >
-            Tail
+            Newest first
           </button>
         </div>
-        <button className="btn btn--small btn--secondary" onClick={() => void load()}>↻ Refresh</button>
       </div>
 
       <div className="pipeline-events__list">
@@ -368,28 +367,21 @@ function WorkerStatus() {
 
 // ── Debug Mode Toggle ────────────────────────────────────────────────────────
 
-function DebugModeToggle() {
-  const [debugMode, setDebugModeState] = useState<boolean | null>(null);
+function DebugModeToggle({
+  debugMode,
+  onDebugModeChange,
+}: {
+  debugMode: boolean | null;
+  onDebugModeChange: (mode: boolean) => void;
+}) {
   const [debugLoading, setDebugLoading] = useState(false);
 
-  useEffect(() => {
-    let cancelled = false;
-    fetchDebugMode()
-      .then((res) => {
-        if (!cancelled) setDebugModeState(res.debug_mode);
-      })
-      .catch(() => {
-        // silently fail — toggle stays hidden
-      });
-    return () => { cancelled = true; };
-  }, []);
-
   async function handleToggle() {
     if (debugMode === null || debugLoading) return;
     setDebugLoading(true);
     try {
       const res = await setDebugMode(!debugMode);
-      setDebugModeState(res.debug_mode);
+      onDebugModeChange(res.debug_mode);
     } catch {
       // swallow — leave previous state
     } finally {
@@ -463,6 +455,7 @@ export default function AdminPipeline() {
   const [actionLoading, setActionLoading] = useState<string | null>(null);
   const [actionMessage, setActionMessage] = useState<{ id: string; text: string; ok: boolean } | null>(null);
   const [activeFilter, setActiveFilter] = useState<string | null>(null);
+  const [debugMode, setDebugModeState] = useState<boolean | null>(null);
 
   const load = useCallback(async () => {
     setLoading(true);
@@ -481,6 +474,18 @@ export default function AdminPipeline() {
     void load();
   }, [load]);
 
+  useEffect(() => {
+    let cancelled = false;
+    fetchDebugMode()
+      .then((res) => {
+        if (!cancelled) setDebugModeState(res.debug_mode);
+      })
+      .catch(() => {
+        // silently fail — toggle stays hidden
+      });
+    return () => { cancelled = true; };
+  }, []);
+
   const handleTrigger = async (videoId: string) => {
     setActionLoading(videoId);
     setActionMessage(null);
@@ -538,7 +543,7 @@ export default function AdminPipeline() {
           </p>
         </div>
         <div className="admin-pipeline__header-right">
-          <DebugModeToggle />
+          <DebugModeToggle debugMode={debugMode} onDebugModeChange={setDebugModeState} />
           <WorkerStatus />
           <button className="btn btn--secondary" onClick={() => void load()} disabled={loading}>
             ↻ Refresh
@@ -588,6 +593,14 @@ export default function AdminPipeline() {
                   <span className="pipeline-video__time">
                     {formatDate(video.last_event_at)}
                   </span>
+                  <a
+                    className="pipeline-video__review-link"
+                    href="/admin/review"
+                    title={`Review moments from ${video.creator_name}`}
+                    onClick={(e) => e.stopPropagation()}
+                  >
+                    → Moments
+                  </a>
                 </div>
 
                 <div className="pipeline-video__actions" onClick={(e) => e.stopPropagation()}>
@@ -597,7 +610,7 @@ export default function AdminPipeline() {
                     disabled={actionLoading === video.id}
                     title="Retrigger pipeline"
                   >
-                    {actionLoading === video.id ? "…" : "▶ Trigger"}
+                    {actionLoading === video.id ? "…" : debugMode ? "▶ Trigger (debug)" : "▶ Trigger"}
                   </button>
                   <button
                     className="btn btn--small btn--danger"
@@ -619,7 +632,6 @@ export default function AdminPipeline() {
               {expandedId === video.id && (
                 <div className="pipeline-video__detail">
                   <div className="pipeline-video__detail-meta">
-                    <span>ID: {video.id.slice(0, 8)}…</span>
                     <span>Created: {formatDate(video.created_at)}</span>
                     <span>Updated: {formatDate(video.updated_at)}</span>
                   </div>