feat(upload): persistent "Recently uploaded" list (§A8)

The transient client-side upload queue vanished on refresh, so a just-
uploaded track seemed to disappear. Add a server-backed "Recently
uploaded" section (source=upload, newest first) that survives refresh and
auto-refreshes after each upload (the upload mutation already invalidates
the `Track` tag this query provides).

- api: `source` filter on `LibraryFilters` → `GET /tracks?source=`
- i18n: `upload.recent.*` (en + ru); loading/error/empty states

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/api/endpoints/library.ts

@@ -42,6 +42,7 @@ function trackParams(f: LibraryFilters) {
     q: f.search,
     artist_id: f.artistId,
     album_id: f.albumId,
+    source: f.source,
     sort_by: f.sortBy ? SORT_BY[f.sortBy] : undefined,
     order: f.sortOrder,
     ...paging(f.page, f.pageSize),

src/api/types.ts

@@ -177,6 +177,8 @@ export interface LibraryFilters {
   genre?: string;
   artistId?: string;
   albumId?: string;
+  /** Filter by ingest origin, e.g. `upload`, `youtube`, `local`. */
+  source?: string;
   liked?: boolean;
   page?: number;
   pageSize?: number;

src/features/upload/UploadPage.tsx

@@ -6,8 +6,23 @@ import {
   buildUploadFormData,
   useUploadTrackMutation,
 } from '../../api/endpoints/upload';
-import { useGetTrackQuery } from '../../api/endpoints/library';
+import {
+  useGetTrackQuery,
+  useGetTracksQuery,
+} from '../../api/endpoints/library';
 import { MetadataStatusBadge } from '../../components/track/MetadataStatusBadge';
+import { TrackRow } from '../../components/track/TrackRow';
+import { LoadingSkeleton } from '../../components/common/LoadingSkeleton';
+import { ErrorState } from '../../components/common/ErrorState';
+
+/** A8 "Recently uploaded": server-backed list (source=upload, newest first) so
+ * it survives a page refresh — unlike the transient client-side queue above. */
+const RECENT_UPLOADS = {
+  source: 'upload',
+  sortBy: 'dateAdded',
+  sortOrder: 'desc',
+  pageSize: 20,
+} as const;
 
 /** Pure client-side state — this is a transient upload queue, never server data. */
 type ItemStatus = 'queued' | 'uploading' | 'done' | 'duplicate' | 'error';
@@ -40,6 +55,10 @@ export function UploadPage() {
   const [items, setItems] = useState<QueueItem[]>([]);
   const [dragging, setDragging] = useState(false);
 
+  // Persisted view of past uploads. Auto-refreshes after each upload because the
+  // upload mutation invalidates the `Track` tag this query provides.
+  const recentQuery = useGetTracksQuery(RECENT_UPLOADS);
+
   const inputRef = useRef<HTMLInputElement>(null);
   const idCounter = useRef(0);
   const activeCount = useRef(0);
@@ -228,6 +247,32 @@ export function UploadPage() {
               ))}
             </div>
           )}
+
+          <section
+            style={{ display: 'flex', flexDirection: 'column', gap: '0.5rem' }}
+          >
+            <span style={{ fontWeight: 600, fontSize: '0.875rem' }}>
+              {t('upload.recent.title')}
+            </span>
+            {recentQuery.isLoading && <LoadingSkeleton rows={4} />}
+            {recentQuery.isError && (
+              <ErrorState onRetry={() => recentQuery.refetch()} />
+            )}
+            {recentQuery.data && recentQuery.data.items.length === 0 && (
+              <p
+                style={{
+                  margin: 0,
+                  fontSize: '0.8125rem',
+                  color: 'var(--color-text-3)',
+                }}
+              >
+                {t('upload.recent.empty')}
+              </p>
+            )}
+            {recentQuery.data?.items.map((track, i) => (
+              <TrackRow key={track.id} track={track} index={i} showAlbum />
+            ))}
+          </section>
         </div>
       </ScrollArea>
     </div>

src/i18n/locales/en.ts

@@ -310,6 +310,10 @@ const en = {
     clearCompleted: 'Clear completed',
     retry: 'Retry',
     editMetadata: 'Edit metadata',
+    recent: {
+      title: 'Recently uploaded',
+      empty: 'Nothing uploaded yet.',
+    },
     metadataPending:
       'Uploaded tracks land as “Unknown Artist” with metadata pending — enrich them afterwards.',
     unknownArtist: 'Unknown Artist · metadata pending',

src/i18n/locales/ru.ts

@@ -312,6 +312,10 @@ const ru: Translations = {
     clearCompleted: 'Убрать завершённые',
     retry: 'Повторить',
     editMetadata: 'Изменить метаданные',
+    recent: {
+      title: 'Недавно загруженные',
+      empty: 'Пока ничего не загружено.',
+    },
     metadataPending:
       'Загруженные треки появляются как «Unknown Artist» с метаданными в ожидании — дозаполните их позже.',
     unknownArtist: 'Unknown Artist · метаданные в ожидании',