Show anime progress from latest session position

- include anime ID in media detail data
- use latest session position for episode progress
- update stats UI and lookup tests

stats/src/App.tsx

@@ -166,9 +166,7 @@ export function App() {
                     ? 'Back to Sessions'
                     : 'Back to Library'
               }
-              onNavigateToAnime={
-                mediaDetail.origin.type === 'anime' ? undefined : navigateToAnime
-              }
+              onNavigateToAnime={navigateToAnime}
             />
           </Suspense>
         ) : (

stats/src/components/library/MediaDetailView.tsx

@@ -38,7 +38,7 @@ export function MediaDetailView({
   if (!data?.detail) return <div className="text-ctp-overlay2 p-4">Media not found</div>;
 
   const sessions = localSessions ?? data.sessions;
-  const animeId = sessions.find((s) => s.animeId != null)?.animeId ?? null;
+  const animeId = data.detail.animeId;
   const detail = {
     ...data.detail,
     totalSessions: sessions.length,

stats/src/lib/yomitan-lookup.test.tsx

@@ -35,6 +35,7 @@ test('MediaHeader renders Yomitan lookup count and lookup rate copy', () => {
       detail={{
         videoId: 7,
         canonicalTitle: 'Episode 7',
+        animeId: null,
         totalSessions: 4,
         totalActiveMs: 90_000,
         totalCards: 12,
@@ -58,6 +59,7 @@ test('MediaHeader distinguishes token occurrences from known unique words', () =
       detail={{
         videoId: 7,
         canonicalTitle: 'Episode 7',
+        animeId: null,
         totalSessions: 4,
         totalActiveMs: 90_000,
         totalCards: 12,

stats/src/types/stats.ts

@@ -136,6 +136,7 @@ export interface MediaDetailData {
   detail: {
     videoId: number;
     canonicalTitle: string;
+    animeId: number | null;
     totalSessions: number;
     totalActiveMs: number;
     totalCards: number;