feat(discover): wire A4 search + A5 downloads to backend

Adds DownloadJob/ExternalSearchResult/SourceInfo contract types + mappers, the downloads + search RTKQ endpoints, and the SearchDownloadPage (search external sources, per-result download states) and DownloadsManagerPage (active/history, progress, retry/cancel, poll-while-active). en/ru i18n. Snapshot also bundles in-progress queue/metadata-editor/storage UI work.

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

.gitea/workflows/docker-publish.yml

@@ -7,7 +7,7 @@ on:
 
 env:
   # Number of tagged (non-latest) versions to keep per image name.
-  KEEP_VERSIONS: "5"
+  KEEP_VERSIONS: '5'
 
 jobs:
   build:

public/sw.js

@@ -60,7 +60,9 @@ async function handleAudio(event) {
   // 2) Cache miss → fetch the WHOLE file (strip Range) so we can store a
   //    complete copy, then satisfy the original request (range-sliced if asked).
   try {
-    const fullReq = new Request(req.url, { headers: withoutRange(req.headers) });
+    const fullReq = new Request(req.url, {
+      headers: withoutRange(req.headers),
+    });
     const resp = await fetch(fullReq);
     if (isCacheable(resp)) {
       event.waitUntil(storeInCache(key, resp.clone()));
@@ -135,7 +137,8 @@ async function buildRangeResponse(response, rangeHeader) {
   const buf = await response.clone().arrayBuffer();
   const size = buf.byteLength;
   const r = parseRangeHeader(rangeHeader, size);
-  const type = response.headers.get('content-type') || 'application/octet-stream';
+  const type =
+    response.headers.get('content-type') || 'application/octet-stream';
 
   if (!r) {
     return new Response(buf, {

src/api/endpoints/downloads.ts

@@ -1,30 +1,88 @@
 import { api } from '../index';
-import type { DownloadJob } from '../types';
+import {
+  toDownloadJob,
+  toPage,
+  type RawDownloadJob,
+  type RawPaged,
+} from '../mappers';
+import type {
+  DownloadJob,
+  DownloadRequestResult,
+  PaginatedResponse,
+} from '../types';
 
-// NOTE: the backend `/downloads` routes are still unimplemented stubs (they
+interface ListParams {
-// return no body / no schema). The request shapes below are provisional and the
+  status?: DownloadJob['status'];
-// responses will need the same snake→camel mapper treatment as library/playlists
+  /** Only the current user's jobs (backend `mine=true`). */
-// (see `mappers.ts`) once the backend defines DownloadJob's wire format. Do not
+  mine?: boolean;
-// wire these into the UI until then.
+  page?: number;
+  pageSize?: number;
+}
+
+interface RawCreateResponse {
+  already_in_library: boolean;
+  track_id: string | null;
+  job: RawDownloadJob | null;
+}
 
 export const downloadsApi = api.injectEndpoints({
   endpoints: (build) => ({
     getDownloads: build.query<
-      DownloadJob[],
+      PaginatedResponse<DownloadJob>,
-      { status?: DownloadJob['status'] } | void
+      ListParams | void
     >({
-      query: (params) => ({ url: '/downloads', params: params ?? {} }),
+      query: (params) => {
-      providesTags: ['Download'],
+        const p = params ?? {};
+        const size = p.pageSize ?? 50;
+        return {
+          url: '/downloads',
+          params: {
+            status: p.status,
+            mine: p.mine ? true : undefined,
+            limit: size,
+            offset: ((p.page ?? 1) - 1) * size,
+          },
+        };
+      },
+      transformResponse: (raw: RawPaged<RawDownloadJob>) =>
+        toPage(raw, toDownloadJob),
+      providesTags: (result) =>
+        result
+          ? [
+              ...result.items.map(({ id }) => ({
+                type: 'Download' as const,
+                id,
+              })),
+              'Download',
+            ]
+          : ['Download'],
     }),
-    addDownload: build.mutation<
+    getDownload: build.query<DownloadJob, string>({
-      DownloadJob,
+      query: (id) => `/downloads/${id}`,
-      {
+      transformResponse: (raw: RawDownloadJob) => toDownloadJob(raw),
-        url: string;
+      providesTags: (_r, _e, id) => [{ type: 'Download', id }],
-        metadata?: { title?: string; artist?: string; album?: string };
+    }),
-      }
+    /** Request a download of a discovered item (§A4 "Download to library"). */
+    createDownload: build.mutation<
+      DownloadRequestResult,
+      { source: string; sourceId: string; query?: string }
     >({
-      query: (body) => ({ url: '/downloads', method: 'POST', body }),
+      query: (body) => ({
-      invalidatesTags: ['Download'],
+        url: '/downloads',
+        method: 'POST',
+        body: {
+          source: body.source,
+          source_id: body.sourceId,
+          query: body.query,
+        },
+      }),
+      transformResponse: (raw: RawCreateResponse): DownloadRequestResult => ({
+        alreadyInLibrary: raw.already_in_library,
+        trackId: raw.track_id ?? undefined,
+        job: raw.job ? toDownloadJob(raw.job) : undefined,
+      }),
+      // A completed dedup can surface an existing library track; refresh both.
+      invalidatesTags: ['Download', 'Track'],
     }),
     cancelDownload: build.mutation<void, string>({
       query: (id) => ({ url: `/downloads/${id}`, method: 'DELETE' }),
@@ -32,7 +90,8 @@ export const downloadsApi = api.injectEndpoints({
     }),
     retryDownload: build.mutation<DownloadJob, string>({
       query: (id) => ({ url: `/downloads/${id}/retry`, method: 'POST' }),
-      invalidatesTags: ['Download'],
+      transformResponse: (raw: RawDownloadJob) => toDownloadJob(raw),
+      invalidatesTags: (_r, _e, id) => [{ type: 'Download', id }, 'Download'],
     }),
   }),
   overrideExisting: false,
@@ -40,7 +99,8 @@ export const downloadsApi = api.injectEndpoints({
 
 export const {
   useGetDownloadsQuery,
-  useAddDownloadMutation,
+  useGetDownloadQuery,
+  useCreateDownloadMutation,
   useCancelDownloadMutation,
   useRetryDownloadMutation,
 } = downloadsApi;

src/api/endpoints/search.ts

@@ -0,0 +1,48 @@
+import { api } from '../index';
+import {
+  toSearchResult,
+  toSourceInfo,
+  type RawSearchResult,
+  type RawSourceInfo,
+} from '../mappers';
+import type { ExternalSearchResult, SourceInfo } from '../types';
+
+interface RawSearchResponse {
+  results: RawSearchResult[];
+  searched_sources: string[];
+}
+
+interface SearchResponse {
+  results: ExternalSearchResult[];
+  /** Names of the sources actually queried (available ones). */
+  searchedSources: string[];
+}
+
+const mapSearch = (raw: RawSearchResponse): SearchResponse => ({
+  results: raw.results.map(toSearchResult),
+  searchedSources: raw.searched_sources,
+});
+
+export const searchApi = api.injectEndpoints({
+  endpoints: (build) => ({
+    /** Registered source backends (for the §A4 source picker). */
+    getSources: build.query<SourceInfo[], void>({
+      query: () => '/sources',
+      transformResponse: (raw: RawSourceInfo[]) => raw.map(toSourceInfo),
+    }),
+    /** Search across every available fetch source (no `source` → aggregate). */
+    searchExternal: build.query<
+      SearchResponse,
+      { q: string; source?: string; limit?: number }
+    >({
+      query: ({ q, source, limit }) =>
+        source
+          ? { url: `/sources/${source}/search`, params: { q, limit } }
+          : { url: '/search', params: { q, limit } },
+      transformResponse: mapSearch,
+    }),
+  }),
+  overrideExisting: false,
+});
+
+export const { useGetSourcesQuery, useLazySearchExternalQuery } = searchApi;

src/api/mappers.ts

@@ -14,10 +14,14 @@
 import type {
   Album,
   Artist,
+  DownloadJob,
+  DownloadStatus,
+  ExternalSearchResult,
   MetadataMatch,
   MetadataStatus,
   PaginatedResponse,
   Playlist,
+  SourceInfo,
   StorageStats,
   Track,
   User,
@@ -246,6 +250,86 @@ export const toStorageStats = (r: RawStorageStats): StorageStats => ({
   disk: r.disk ?? undefined,
 });
 
+// ---- downloads + external search ----
+
+const DOWNLOAD_STATUSES: readonly DownloadStatus[] = [
+  'queued',
+  'downloading',
+  'enriching',
+  'done',
+  'failed',
+];
+
+const toDownloadStatus = (raw: string): DownloadStatus =>
+  (DOWNLOAD_STATUSES as readonly string[]).includes(raw)
+    ? (raw as DownloadStatus)
+    : 'queued';
+
+export interface RawDownloadJob {
+  id: string;
+  source: string;
+  source_id: string | null;
+  query: string | null;
+  status: string;
+  progress: number;
+  error_message: string | null;
+  retry_count: number;
+  track_id: string | null;
+  created_at: string;
+  updated_at: string;
+}
+
+export const toDownloadJob = (r: RawDownloadJob): DownloadJob => ({
+  id: r.id,
+  source: r.source,
+  sourceId: r.source_id ?? undefined,
+  query: r.query ?? undefined,
+  status: toDownloadStatus(r.status),
+  progress: r.progress,
+  errorMessage: r.error_message ?? undefined,
+  trackId: r.track_id ?? undefined,
+  retryCount: r.retry_count,
+  createdAt: r.created_at,
+  updatedAt: r.updated_at,
+});
+
+export interface RawSearchResult {
+  source: string;
+  source_id: string;
+  title: string;
+  artist: string | null;
+  album: string | null;
+  duration_seconds: number | null;
+  thumbnail_url: string | null;
+}
+
+export const toSearchResult = (r: RawSearchResult): ExternalSearchResult => ({
+  source: r.source,
+  sourceId: r.source_id,
+  title: r.title,
+  artist: r.artist ?? undefined,
+  album: r.album ?? undefined,
+  durationMs:
+    r.duration_seconds != null ? r.duration_seconds * 1000 : undefined,
+  thumbnailUrl: r.thumbnail_url ?? undefined,
+});
+
+export interface RawSourceInfo {
+  name: string;
+  label: string;
+  kind: string;
+  available: boolean;
+}
+
+export const toSourceInfo = (r: RawSourceInfo): SourceInfo => ({
+  name: r.name,
+  label: r.label,
+  // Backend kinds are `indexable` | `fetch`; default unknowns to indexable
+  // (the conservative, non-searchable bucket).
+  kind: r.kind === 'fetch' ? 'fetch' : 'indexable',
+  available: r.available,
+});
+
 /**
  * Translate the backend's `{items,total,limit,offset}` envelope into the UI's
  * `{items,total,page,pageSize,hasMore}`, mapping each element.

src/api/types.ts

@@ -78,20 +78,62 @@ export interface PlaylistTrack extends Track {
   addedAt: string;
 }
 
+/** Lifecycle of a download job, mirroring the backend's `DownloadStatus`.
+ * `enriching` = file fetched, metadata pipeline running; `done` = imported. */
+export type DownloadStatus =
+  | 'queued'
+  | 'downloading'
+  | 'enriching'
+  | 'done'
+  | 'failed';
+
 export interface DownloadJob {
   id: string;
-  url: string;
+  /** Source backend the job pulls from (e.g. `youtube`). */
-  title?: string;
+  source: string;
-  artist?: string;
+  /** Stable per-source id of the item (e.g. a YouTube videoId). */
-  album?: string;
+  sourceId?: string;
-  status: 'queued' | 'downloading' | 'processing' | 'done' | 'error';
+  /** The free-text query the job was created from, for display. */
+  query?: string;
+  status: DownloadStatus;
+  /** Fraction complete, 0..1. */
   progress: number;
   errorMessage?: string;
+  /** Set once the download finishes and the library track exists. */
   trackId?: string;
+  retryCount: number;
   createdAt: string;
   updatedAt: string;
 }
 
+/** Result of POST /downloads. Either the item is already in the library
+ * (`alreadyInLibrary`, `trackId` set), or a job covers it (`job`). */
+export interface DownloadRequestResult {
+  alreadyInLibrary: boolean;
+  trackId?: string;
+  job?: DownloadJob;
+}
+
+/** One hit from an external (fetch) source — the §A4 discover screen. */
+export interface ExternalSearchResult {
+  source: string;
+  sourceId: string;
+  title: string;
+  artist?: string;
+  album?: string;
+  durationMs?: number;
+  thumbnailUrl?: string;
+}
+
+/** A registered source backend, from GET /sources. `kind`: `indexable` (a
+ * mounted folder) or `fetch` (searchable + downloadable, e.g. YouTube). */
+export interface SourceInfo {
+  name: string;
+  label: string;
+  kind: 'indexable' | 'fetch';
+  available: boolean;
+}
+
 export interface UploadResponse {
   track_id: string;
   title: string;

src/components/common/Marquee.tsx

@@ -31,7 +31,9 @@ export function Marquee({
     <span
       ref={ref}
       className={`marquee${shift ? ' on' : ''}${className ? ` ${className}` : ''}`}
-      style={shift ? ({ '--mq-shift': `-${shift}px` } as CSSProperties) : undefined}
+      style={
+        shift ? ({ '--mq-shift': `-${shift}px` } as CSSProperties) : undefined
+      }
     >
       <span className="marquee-inner">{text}</span>
     </span>

src/components/layout/Sidebar.tsx

@@ -19,9 +19,24 @@ interface NavDef {
 
 const MAIN_NAV: NavDef[] = [
   { to: '/library', labelKey: 'nav.library', icon: 'vinyl-record' },
-  { to: '/discover', labelKey: 'nav.search', icon: 'magnifying-glass', perm: 'download' },
+  {
-  { to: '/downloads', labelKey: 'nav.downloads', icon: 'arrow-circle-down', perm: 'download' },
+    to: '/discover',
-  { to: '/upload', labelKey: 'nav.upload', icon: 'upload-simple', perm: 'upload' },
+    labelKey: 'nav.search',
+    icon: 'magnifying-glass',
+    perm: 'download',
+  },
+  {
+    to: '/downloads',
+    labelKey: 'nav.downloads',
+    icon: 'arrow-circle-down',
+    perm: 'download',
+  },
+  {
+    to: '/upload',
+    labelKey: 'nav.upload',
+    icon: 'upload-simple',
+    perm: 'upload',
+  },
   { to: '/storage', labelKey: 'nav.storage', icon: 'hard-drives' },
 ];
 

src/components/player/QueuePanel.tsx

@@ -273,7 +273,10 @@ function QueueRow({
       </div>
       <div className="qt">
         <Marquee className="t" text={resolved?.title ?? entry.title} />
-        <Marquee className="r" text={resolved?.artistName ?? entry.artistName} />
+        <Marquee
+          className="r"
+          text={resolved?.artistName ?? entry.artistName}
+        />
       </div>
       <Menu>
         <MenuTrigger asChild>

src/features/downloads-manager/DownloadsManagerPage.tsx

@@ -1,13 +1,275 @@
+import { useEffect, useState } from 'react';
+import { useNavigate } from 'react-router';
 import { useTranslation } from 'react-i18next';
-import { Window } from '@olly/modern-sk';
+import {
+  Badge,
+  Button,
+  Callout,
+  Progress,
+  ScrollArea,
+  Spinner,
+} from '@olly/modern-sk';
+import {
+  useCancelDownloadMutation,
+  useGetDownloadsQuery,
+  useRetryDownloadMutation,
+} from '../../api/endpoints/downloads';
+import { Icon } from '../../components/common/Icon';
+import { EmptyState } from '../../components/common/EmptyState';
+import { ErrorState } from '../../components/common/ErrorState';
+import { LoadingSkeleton } from '../../components/common/LoadingSkeleton';
+import { formatDateTime } from '../../lib/format';
+import type { DownloadJob, DownloadStatus } from '../../api/types';
 
+const ACTIVE: readonly DownloadStatus[] = [
+  'queued',
+  'downloading',
+  'enriching',
+];
+const isActive = (s: DownloadStatus) => ACTIVE.includes(s);
+
+const STATUS_BADGE: Record<
+  DownloadStatus,
+  { variant: 'lime' | 'ember' | 'neutral' | 'outline'; key: string }
+> = {
+  queued: { variant: 'neutral', key: 'downloads.status.queued' },
+  downloading: { variant: 'neutral', key: 'downloads.status.downloading' },
+  enriching: { variant: 'outline', key: 'downloads.status.enriching' },
+  done: { variant: 'lime', key: 'downloads.status.done' },
+  failed: { variant: 'ember', key: 'downloads.status.failed' },
+};
+
+/** `/downloads` — A5 download manager: active queue, progress, errors, retries. */
 export function DownloadsManagerPage() {
   const { t } = useTranslation();
+
+  // Poll while anything is in flight; idle pages stop polling (tag invalidation
+  // from a new download still refetches and re-arms the interval).
+  const [pollMs, setPollMs] = useState(2000);
+  const { data, isLoading, isError, refetch } = useGetDownloadsQuery(
+    undefined,
+    {
+      pollingInterval: pollMs,
+    },
+  );
+
+  useEffect(() => {
+    const anyActive = data?.items.some((j) => isActive(j.status)) ?? false;
+    setPollMs(anyActive ? 1500 : 0);
+  }, [data]);
+
+  const jobs = data?.items ?? [];
+  const active = jobs.filter((j) => isActive(j.status));
+  const finished = jobs.filter((j) => !isActive(j.status));
+  const failedCount = jobs.filter((j) => j.status === 'failed').length;
+
   return (
-    <div style={{ padding: '1.5rem' }}>
+    <div style={{ display: 'flex', flexDirection: 'column', height: '100%' }}>
-      <Window title={t('pages.downloads')}>
+      <header
-        <p style={{ color: 'var(--color-text-2)' }}>{t('common.comingSoon')}</p>
+        style={{
-      </Window>
+          padding: '1.25rem 1.5rem',
+          borderBottom: '1px solid var(--color-border)',
+          flexShrink: 0,
+          display: 'flex',
+          alignItems: 'baseline',
+          justifyContent: 'space-between',
+          gap: '1rem',
+        }}
+      >
+        <div>
+          <h2 style={{ margin: 0, fontSize: '1.125rem', fontWeight: 700 }}>
+            {t('downloads.title')}
+          </h2>
+          <p
+            style={{
+              margin: '0.25rem 0 0',
+              fontSize: '0.8125rem',
+              color: 'var(--color-text-3)',
+            }}
+          >
+            {t('downloads.subtitle')}
+          </p>
+        </div>
+        {active.length > 0 && (
+          <Badge variant="neutral">
+            <Spinner size="sm" />{' '}
+            {t('downloads.activeCount', { count: active.length })}
+          </Badge>
+        )}
+      </header>
+
+      <ScrollArea style={{ flex: 1 }}>
+        <div
+          style={{
+            padding: '1.5rem',
+            maxWidth: 880,
+            margin: '0 auto',
+            display: 'flex',
+            flexDirection: 'column',
+            gap: '1.25rem',
+          }}
+        >
+          {isLoading && <LoadingSkeleton rows={5} height={64} />}
+          {isError && (
+            <ErrorState
+              message={t('downloads.loadError')}
+              onRetry={() => refetch()}
+            />
+          )}
+
+          {data && jobs.length === 0 && (
+            <EmptyState
+              icon={<Icon name="arrow-circle-down" />}
+              title={t('downloads.emptyTitle')}
+              description={t('downloads.emptyDesc')}
+            />
+          )}
+
+          {failedCount > 0 && (
+            <Callout variant="warning">
+              {t('downloads.failedBanner', { count: failedCount })}
+            </Callout>
+          )}
+
+          {active.length > 0 && (
+            <Section title={t('downloads.sectionActive')}>
+              {active.map((job) => (
+                <JobRow key={job.id} job={job} />
+              ))}
+            </Section>
+          )}
+
+          {finished.length > 0 && (
+            <Section title={t('downloads.sectionHistory')}>
+              {finished.map((job) => (
+                <JobRow key={job.id} job={job} />
+              ))}
+            </Section>
+          )}
+        </div>
+      </ScrollArea>
+    </div>
+  );
+}
+
+function Section({
+  title,
+  children,
+}: {
+  title: string;
+  children: React.ReactNode;
+}) {
+  return (
+    <section
+      style={{ display: 'flex', flexDirection: 'column', gap: '0.5rem' }}
+    >
+      <span
+        style={{
+          fontWeight: 600,
+          fontSize: '0.8125rem',
+          color: 'var(--color-text-2)',
+          textTransform: 'uppercase',
+          letterSpacing: '0.04em',
+        }}
+      >
+        {title}
+      </span>
+      {children}
+    </section>
+  );
+}
+
+function JobRow({ job }: { job: DownloadJob }) {
+  const { t } = useTranslation();
+  const navigate = useNavigate();
+  const [cancel, { isLoading: cancelling }] = useCancelDownloadMutation();
+  const [retry, { isLoading: retrying }] = useRetryDownloadMutation();
+
+  const badge = STATUS_BADGE[job.status];
+  const label = job.query || job.sourceId || job.source;
+  const added = formatDateTime(job.createdAt);
+
+  return (
+    <div
+      style={{
+        display: 'flex',
+        flexDirection: 'column',
+        gap: '0.5rem',
+        padding: '0.75rem',
+        border: '1px solid var(--color-border)',
+        borderRadius: 8,
+        background: 'var(--color-surface-1)',
+      }}
+    >
+      <div style={{ display: 'flex', alignItems: 'center', gap: '0.75rem' }}>
+        <div style={{ flex: 1, minWidth: 0 }}>
+          <div
+            style={{
+              fontSize: '0.9375rem',
+              fontWeight: 600,
+              overflow: 'hidden',
+              textOverflow: 'ellipsis',
+              whiteSpace: 'nowrap',
+            }}
+            title={label}
+          >
+            {label}
+          </div>
+          <div style={{ fontSize: '0.75rem', color: 'var(--color-text-3)' }}>
+            {job.source}
+            {job.retryCount > 0 &&
+              ` · ${t('downloads.attempt', { count: job.retryCount + 1 })}`}
+            {added && ` · ${added}`}
+          </div>
+        </div>
+
+        <Badge variant={badge.variant} dot>
+          {t(badge.key)}
+        </Badge>
+
+        {job.status === 'done' && job.trackId && (
+          <Button
+            variant="ghost"
+            size="sm"
+            type="button"
+            onClick={() => void navigate(`/tracks/${job.trackId}/metadata`)}
+          >
+            {t('downloads.open')}
+          </Button>
+        )}
+        {job.status === 'failed' && (
+          <Button
+            variant="ghost"
+            size="sm"
+            type="button"
+            disabled={retrying}
+            onClick={() => void retry(job.id)}
+          >
+            <Icon name="arrows-clockwise" /> {t('downloads.retry')}
+          </Button>
+        )}
+        {isActive(job.status) && (
+          <Button
+            variant="ghost"
+            size="sm"
+            type="button"
+            disabled={cancelling}
+            onClick={() => void cancel(job.id)}
+            title={t('downloads.cancel')}
+          >
+            <Icon name="x" />
+          </Button>
+        )}
+      </div>
+
+      {job.status === 'downloading' && (
+        <Progress value={Math.round(job.progress * 100)} />
+      )}
+      {job.status === 'failed' && job.errorMessage && (
+        <div style={{ fontSize: '0.75rem', color: 'var(--color-text-3)' }}>
+          {job.errorMessage}
+        </div>
+      )}
     </div>
   );
 }

src/features/library/LibraryPage.tsx

@@ -76,13 +76,25 @@ export function LibraryPage() {
   // Live server data wins; offline we fall back to the locally-composed list.
   const tracksToShow =
     tracksQuery.data?.items ??
-    (offline ? (q ? localTracks.filter((tr) => matchTrack(tr, q)) : localTracks) : undefined);
+    (offline
+      ? q
+        ? localTracks.filter((tr) => matchTrack(tr, q))
+        : localTracks
+      : undefined);
   const albumsToShow =
     albumsQuery.data?.items ??
-    (offline ? (q ? localAlbums.filter((a) => matchAlbum(a, q)) : localAlbums) : undefined);
+    (offline
+      ? q
+        ? localAlbums.filter((a) => matchAlbum(a, q))
+        : localAlbums
+      : undefined);
   const artistsToShow =
     artistsQuery.data?.items ??
-    (offline ? (q ? localArtists.filter((a) => matchArtist(a, q)) : localArtists) : undefined);
+    (offline
+      ? q
+        ? localArtists.filter((a) => matchArtist(a, q))
+        : localArtists
+      : undefined);
 
   const handlePlayAll = (tracks: Track[]) => {
     dispatch(

src/features/metadata-editor/MetadataEditorPage.tsx

@@ -1,7 +1,16 @@
 import { useEffect, useState } from 'react';
 import { useParams, useNavigate } from 'react-router';
 import { useTranslation } from 'react-i18next';
-import { Badge, Button, Callout, Card, IconButton, ScrollArea, Spinner, TextField } from '@olly/modern-sk';
+import {
+  Badge,
+  Button,
+  Callout,
+  Card,
+  IconButton,
+  ScrollArea,
+  Spinner,
+  TextField,
+} from '@olly/modern-sk';
 import {
   useApplyMetadataMutation,
   useEnrichTrackMutation,
@@ -75,7 +84,9 @@ function SingleTrackEditor() {
 
   const [form, setForm] = useState<FormState>(EMPTY_FORM);
   const [initialized, setInitialized] = useState(false);
-  const [selectedMatch, setSelectedMatch] = useState<MetadataMatch | null>(null);
+  const [selectedMatch, setSelectedMatch] = useState<MetadataMatch | null>(
+    null,
+  );
 
   // Seed the form from the loaded track exactly once — afterwards it's the
   // user's edit buffer and shouldn't be clobbered by refetches.
@@ -139,7 +150,9 @@ function SingleTrackEditor() {
         albumTitle: form.albumTitle.trim() || undefined,
         year: form.year.trim() ? Number(form.year) : undefined,
         genre: form.genre.trim() || undefined,
-        trackNumber: form.trackNumber.trim() ? Number(form.trackNumber) : undefined,
+        trackNumber: form.trackNumber.trim()
+          ? Number(form.trackNumber)
+          : undefined,
       },
     }).unwrap();
   };
@@ -210,7 +223,9 @@ function SingleTrackEditor() {
               }}
             >
               <div>
-                <label style={labelStyle}>{t('metadataEditor.fields.title')}</label>
+                <label style={labelStyle}>
+                  {t('metadataEditor.fields.title')}
+                </label>
                 <TextField
                   style={fieldStyle()}
                   value={form.title}
@@ -218,7 +233,9 @@ function SingleTrackEditor() {
                 />
               </div>
               <div>
-                <label style={labelStyle}>{t('metadataEditor.fields.artist')}</label>
+                <label style={labelStyle}>
+                  {t('metadataEditor.fields.artist')}
+                </label>
                 <TextField
                   style={fieldStyle()}
                   value={form.artistName}
@@ -226,7 +243,9 @@ function SingleTrackEditor() {
                 />
               </div>
               <div>
-                <label style={labelStyle}>{t('metadataEditor.fields.album')}</label>
+                <label style={labelStyle}>
+                  {t('metadataEditor.fields.album')}
+                </label>
                 <TextField
                   style={fieldStyle()}
                   value={form.albumTitle}
@@ -235,7 +254,9 @@ function SingleTrackEditor() {
               </div>
               <div style={{ display: 'flex', gap: '1rem' }}>
                 <div style={{ flex: 1 }}>
-                  <label style={labelStyle}>{t('metadataEditor.fields.year')}</label>
+                  <label style={labelStyle}>
+                    {t('metadataEditor.fields.year')}
+                  </label>
                   <TextField
                     style={fieldStyle()}
                     type="number"
@@ -244,7 +265,9 @@ function SingleTrackEditor() {
                   />
                 </div>
                 <div style={{ flex: 1 }}>
-                  <label style={labelStyle}>{t('metadataEditor.fields.trackNumber')}</label>
+                  <label style={labelStyle}>
+                    {t('metadataEditor.fields.trackNumber')}
+                  </label>
                   <TextField
                     style={fieldStyle()}
                     type="number"
@@ -254,7 +277,9 @@ function SingleTrackEditor() {
                 </div>
               </div>
               <div>
-                <label style={labelStyle}>{t('metadataEditor.fields.genre')}</label>
+                <label style={labelStyle}>
+                  {t('metadataEditor.fields.genre')}
+                </label>
                 <TextField
                   style={fieldStyle()}
                   value={form.genre}
@@ -262,13 +287,23 @@ function SingleTrackEditor() {
                 />
               </div>
 
-              <div style={{ display: 'flex', gap: '0.5rem', justifyContent: 'flex-end' }}>
+              <div
+                style={{
+                  display: 'flex',
+                  gap: '0.5rem',
+                  justifyContent: 'flex-end',
+                }}
+              >
                 <Button
                   variant="primary"
                   onClick={() => void handleSave()}
                   disabled={applyResult.isLoading}
                 >
-                  {applyResult.isLoading ? <Spinner size="sm" /> : t('metadataEditor.save')}
+                  {applyResult.isLoading ? (
+                    <Spinner size="sm" />
+                  ) : (
+                    t('metadataEditor.save')
+                  )}
                 </Button>
               </div>
             </div>
@@ -295,7 +330,12 @@ function SingleTrackEditor() {
                   <div style={{ fontWeight: 600, fontSize: '0.9375rem' }}>
                     {t('metadataEditor.autoEnrich.title')}
                   </div>
-                  <div style={{ fontSize: '0.8125rem', color: 'var(--color-text-3)' }}>
+                  <div
+                    style={{
+                      fontSize: '0.8125rem',
+                      color: 'var(--color-text-3)',
+                    }}
+                  >
                     {t('metadataEditor.autoEnrich.hint')}
                   </div>
                 </div>
@@ -328,18 +368,31 @@ function SingleTrackEditor() {
               </div>
 
               {enrichResult.isSuccess && (
-                <Callout variant="info">{t('metadataEditor.autoEnrich.enqueued')}</Callout>
+                <Callout variant="info">
+                  {t('metadataEditor.autoEnrich.enqueued')}
+                </Callout>
               )}
 
               {matchesResult.isError && (
-                <Callout variant="danger">{t('metadataEditor.autoEnrich.error')}</Callout>
+                <Callout variant="danger">
+                  {t('metadataEditor.autoEnrich.error')}
+                </Callout>
               )}
 
-              {matchesResult.isSuccess && matchesResult.data && (
+              {matchesResult.isSuccess &&
-                matchesResult.data.length === 0 ? (
+                matchesResult.data &&
-                  <Callout variant="warning">{t('metadataEditor.autoEnrich.noMatches')}</Callout>
+                (matchesResult.data.length === 0 ? (
+                  <Callout variant="warning">
+                    {t('metadataEditor.autoEnrich.noMatches')}
+                  </Callout>
                 ) : (
-                  <div style={{ display: 'flex', flexDirection: 'column', gap: '0.5rem' }}>
+                  <div
+                    style={{
+                      display: 'flex',
+                      flexDirection: 'column',
+                      gap: '0.5rem',
+                    }}
+                  >
                     {matchesResult.data.map((match) => (
                       <MatchRow
                         key={match.acoustid}
@@ -348,8 +401,7 @@ function SingleTrackEditor() {
                       />
                     ))}
                   </div>
-                )
+                ))}
-              )}
 
               {selectedMatch && (
                 <DiffView
@@ -367,7 +419,13 @@ function SingleTrackEditor() {
   );
 }
 
-function MatchRow({ match, onUse }: { match: MetadataMatch; onUse: () => void }) {
+function MatchRow({
+  match,
+  onUse,
+}: {
+  match: MetadataMatch;
+  onUse: () => void;
+}) {
   const { t } = useTranslation();
   const pct = Math.round(match.score * 100);
   return (
@@ -489,11 +547,20 @@ function DiffView({
           {t('metadataEditor.diff.noChanges')}
         </div>
       ) : (
-        <div style={{ display: 'flex', flexDirection: 'column', gap: '0.375rem' }}>
+        <div
+          style={{ display: 'flex', flexDirection: 'column', gap: '0.375rem' }}
+        >
           {changed.map((row) => (
             <div key={row.key} style={{ fontSize: '0.8125rem' }}>
-              <span style={{ color: 'var(--color-text-3)' }}>{row.label}: </span>
+              <span style={{ color: 'var(--color-text-3)' }}>
-              <span style={{ textDecoration: 'line-through', color: 'var(--color-text-3)' }}>
+                {row.label}:{' '}
+              </span>
+              <span
+                style={{
+                  textDecoration: 'line-through',
+                  color: 'var(--color-text-3)',
+                }}
+              >
                 {row.current || '—'}
               </span>
               {' → '}
@@ -504,11 +571,18 @@ function DiffView({
           ))}
         </div>
       )}
-      <div style={{ display: 'flex', gap: '0.5rem', justifyContent: 'flex-end' }}>
+      <div
+        style={{ display: 'flex', gap: '0.5rem', justifyContent: 'flex-end' }}
+      >
         <Button variant="ghost" size="sm" onClick={onCancel}>
           {t('metadataEditor.diff.cancel')}
         </Button>
-        <Button variant="primary" size="sm" onClick={onApply} disabled={changed.length === 0}>
+        <Button
+          variant="primary"
+          size="sm"
+          onClick={onApply}
+          disabled={changed.length === 0}
+        >
           {t('metadataEditor.diff.apply')}
         </Button>
       </div>

src/features/search-download/SearchDownloadPage.tsx

@@ -1,13 +1,358 @@
+import { useState } from 'react';
+import { useNavigate } from 'react-router';
 import { useTranslation } from 'react-i18next';
-import { Window } from '@olly/modern-sk';
+import {
+  Badge,
+  Button,
+  Callout,
+  ScrollArea,
+  SearchField,
+  SegmentedControl,
+  Spinner,
+} from '@olly/modern-sk';
+import {
+  useGetSourcesQuery,
+  useLazySearchExternalQuery,
+} from '../../api/endpoints/search';
+import { useCreateDownloadMutation } from '../../api/endpoints/downloads';
+import { Icon } from '../../components/common/Icon';
+import { EmptyState } from '../../components/common/EmptyState';
+import { ErrorState } from '../../components/common/ErrorState';
+import { LoadingSkeleton } from '../../components/common/LoadingSkeleton';
+import { formatDuration } from '../../lib/format';
+import type { ExternalSearchResult } from '../../api/types';
 
+const ALL = '__all__';
+
+/** Per-result download outcome, keyed by `${source}:${sourceId}`. */
+type RowState = 'idle' | 'pending' | 'queued' | 'inLibrary' | 'error';
+
+const rowKey = (r: ExternalSearchResult) => `${r.source}:${r.sourceId}`;
+
+/** `/discover` — A4: search external sources and download into the library. */
 export function SearchDownloadPage() {
   const { t } = useTranslation();
+  const navigate = useNavigate();
+
+  const sourcesQuery = useGetSourcesQuery();
+  const fetchSources = (sourcesQuery.data ?? []).filter(
+    (s) => s.kind === 'fetch',
+  );
+  const hasFetchSource = fetchSources.length > 0;
+
+  const [term, setTerm] = useState('');
+  const [source, setSource] = useState(ALL);
+  const [search, result] = useLazySearchExternalQuery();
+  const [createDownload] = useCreateDownloadMutation();
+
+  const [rowStates, setRowStates] = useState<Record<string, RowState>>({});
+  const [queuedAny, setQueuedAny] = useState(false);
+
+  const runSearch = (q: string) => {
+    if (!q) return;
+    setRowStates({});
+    void search({ q, source: source === ALL ? undefined : source, limit: 25 });
+  };
+
+  const onSubmit = (e: React.FormEvent) => {
+    e.preventDefault();
+    runSearch(term.trim());
+  };
+
+  const download = async (r: ExternalSearchResult) => {
+    const key = rowKey(r);
+    setRowStates((s) => ({ ...s, [key]: 'pending' }));
+    try {
+      const res = await createDownload({
+        source: r.source,
+        sourceId: r.sourceId,
+        query: term.trim() || undefined,
+      }).unwrap();
+      setRowStates((s) => ({
+        ...s,
+        [key]: res.alreadyInLibrary ? 'inLibrary' : 'queued',
+      }));
+      if (!res.alreadyInLibrary) setQueuedAny(true);
+    } catch {
+      setRowStates((s) => ({ ...s, [key]: 'error' }));
+    }
+  };
+
+  const pickerItems = [
+    { value: ALL, label: t('discover.allSources') },
+    ...fetchSources.map((s) => ({ value: s.name, label: s.label })),
+  ];
+
   return (
-    <div style={{ padding: '1.5rem' }}>
+    <div style={{ display: 'flex', flexDirection: 'column', height: '100%' }}>
-      <Window title={t('pages.search')}>
+      <header
-        <p style={{ color: 'var(--color-text-2)' }}>{t('common.comingSoon')}</p>
+        style={{
-      </Window>
+          padding: '1.25rem 1.5rem',
+          borderBottom: '1px solid var(--color-border)',
+          flexShrink: 0,
+          display: 'flex',
+          flexDirection: 'column',
+          gap: '0.875rem',
+        }}
+      >
+        <div
+          style={{
+            display: 'flex',
+            alignItems: 'baseline',
+            justifyContent: 'space-between',
+            gap: '1rem',
+          }}
+        >
+          <div>
+            <h2 style={{ margin: 0, fontSize: '1.125rem', fontWeight: 700 }}>
+              {t('discover.title')}
+            </h2>
+            <p
+              style={{
+                margin: '0.25rem 0 0',
+                fontSize: '0.8125rem',
+                color: 'var(--color-text-3)',
+              }}
+            >
+              {t('discover.subtitle')}
+            </p>
+          </div>
+          {queuedAny && (
+            <Button
+              variant="ghost"
+              size="sm"
+              type="button"
+              onClick={() => void navigate('/downloads')}
+            >
+              <Icon name="arrow-circle-down" /> {t('discover.viewDownloads')}
+            </Button>
+          )}
+        </div>
+
+        <form
+          onSubmit={onSubmit}
+          style={{ display: 'flex', gap: '0.625rem', alignItems: 'center' }}
+        >
+          <div style={{ flex: 1 }}>
+            <SearchField
+              icon={<Icon name="magnifying-glass" />}
+              placeholder={t('discover.searchPlaceholder')}
+              value={term}
+              onChange={(e) => setTerm(e.target.value)}
+              disabled={!hasFetchSource}
+            />
+          </div>
+          <Button
+            variant="primary"
+            type="submit"
+            disabled={!hasFetchSource || !term.trim()}
+          >
+            {t('discover.searchButton')}
+          </Button>
+        </form>
+
+        {fetchSources.length > 1 && (
+          <SegmentedControl
+            value={source}
+            onValueChange={setSource}
+            items={pickerItems}
+          />
+        )}
+      </header>
+
+      <ScrollArea style={{ flex: 1 }}>
+        <div style={{ padding: '1.5rem', maxWidth: 880, margin: '0 auto' }}>
+          {!sourcesQuery.isLoading && !hasFetchSource && (
+            <Callout variant="warning">{t('discover.noSources')}</Callout>
+          )}
+
+          {result.isFetching && <LoadingSkeleton rows={6} height={64} />}
+
+          {result.isError && !result.isFetching && (
+            <ErrorState
+              message={t('discover.searchError')}
+              onRetry={() => runSearch(term.trim())}
+            />
+          )}
+
+          {!result.isFetching &&
+            !result.isError &&
+            result.data &&
+            result.data.results.length === 0 && (
+              <EmptyState
+                icon={<Icon name="magnifying-glass" />}
+                title={t('discover.emptyTitle')}
+                description={t('discover.emptyDesc')}
+              />
+            )}
+
+          {result.isUninitialized && hasFetchSource && (
+            <EmptyState
+              icon={<Icon name="magnifying-glass" />}
+              title={t('discover.startTitle')}
+              description={t('discover.startDesc')}
+            />
+          )}
+
+          {!result.isFetching &&
+            result.data &&
+            result.data.results.length > 0 && (
+              <div
+                style={{
+                  display: 'flex',
+                  flexDirection: 'column',
+                  gap: '0.5rem',
+                }}
+              >
+                {result.data.results.map((r) => (
+                  <ResultRow
+                    key={rowKey(r)}
+                    result={r}
+                    state={rowStates[rowKey(r)] ?? 'idle'}
+                    onDownload={() => void download(r)}
+                  />
+                ))}
+              </div>
+            )}
+        </div>
+      </ScrollArea>
+    </div>
+  );
+}
+
+function ResultRow({
+  result,
+  state,
+  onDownload,
+}: {
+  result: ExternalSearchResult;
+  state: RowState;
+  onDownload: () => void;
+}) {
+  const { t } = useTranslation();
+  return (
+    <div
+      style={{
+        display: 'flex',
+        alignItems: 'center',
+        gap: '0.875rem',
+        padding: '0.625rem 0.75rem',
+        border: '1px solid var(--color-border)',
+        borderRadius: 8,
+        background: 'var(--color-surface-1)',
+      }}
+    >
+      <Thumb url={result.thumbnailUrl} />
+
+      <div style={{ flex: 1, minWidth: 0 }}>
+        <div
+          style={{
+            fontSize: '0.9375rem',
+            fontWeight: 600,
+            overflow: 'hidden',
+            textOverflow: 'ellipsis',
+            whiteSpace: 'nowrap',
+          }}
+          title={result.title}
+        >
+          {result.title}
+        </div>
+        <div
+          style={{
+            fontSize: '0.8125rem',
+            color: 'var(--color-text-3)',
+            overflow: 'hidden',
+            textOverflow: 'ellipsis',
+            whiteSpace: 'nowrap',
+          }}
+        >
+          {[result.artist, result.album].filter(Boolean).join(' · ') ||
+            result.source}
+        </div>
+      </div>
+
+      {result.durationMs != null && (
+        <span
+          style={{
+            fontSize: '0.8125rem',
+            color: 'var(--color-text-3)',
+            fontVariantNumeric: 'tabular-nums',
+          }}
+        >
+          {formatDuration(result.durationMs)}
+        </span>
+      )}
+
+      <DownloadControl state={state} onDownload={onDownload} t={t} />
+    </div>
+  );
+}
+
+function DownloadControl({
+  state,
+  onDownload,
+  t,
+}: {
+  state: RowState;
+  onDownload: () => void;
+  t: (k: string) => string;
+}) {
+  if (state === 'inLibrary') {
+    return (
+      <Badge variant="outline" dot>
+        {t('discover.inLibrary')}
+      </Badge>
+    );
+  }
+  if (state === 'queued') {
+    return (
+      <Badge variant="lime" dot>
+        {t('discover.queued')}
+      </Badge>
+    );
+  }
+  if (state === 'pending') {
+    return (
+      <Button variant="ghost" size="sm" type="button" disabled>
+        <Spinner size="sm" />
+      </Button>
+    );
+  }
+  return (
+    <Button variant="primary" size="sm" type="button" onClick={onDownload}>
+      <Icon name="arrow-circle-down" />
+      {state === 'error' ? t('discover.retryDownload') : t('discover.download')}
+    </Button>
+  );
+}
+
+function Thumb({ url }: { url?: string }) {
+  return (
+    <div
+      style={{
+        width: 44,
+        height: 44,
+        borderRadius: 6,
+        flexShrink: 0,
+        overflow: 'hidden',
+        background: 'var(--color-surface-2)',
+        display: 'flex',
+        alignItems: 'center',
+        justifyContent: 'center',
+        color: 'var(--color-text-3)',
+      }}
+    >
+      {url ? (
+        <img
+          src={url}
+          alt=""
+          width={44}
+          height={44}
+          style={{ objectFit: 'cover', width: '100%', height: '100%' }}
+        />
+      ) : (
+        <Icon name="vinyl-record" />
+      )}
     </div>
   );
 }

src/features/settings/panels.tsx

@@ -4,7 +4,13 @@ import { Window, SegmentedControl, useTheme } from '@olly/modern-sk';
 import { SUPPORTED_LANGUAGES, setLanguage } from '../../i18n';
 
 /** Labelled settings row: caption on the left, control on the right. */
-function SettingRow({ label, children }: { label: string; children: ReactNode }) {
+function SettingRow({
+  label,
+  children,
+}: {
+  label: string;
+  children: ReactNode;
+}) {
   return (
     <div style={{ display: 'flex', alignItems: 'center', gap: '1rem' }}>
       <span

src/features/storage/StoragePage.tsx

@@ -50,7 +50,9 @@ export function StoragePage() {
           {t('storage.subtitle')}
         </p>
 
-        <div style={{ display: 'flex', flexDirection: 'column', gap: '1.5rem' }}>
+        <div
+          style={{ display: 'flex', flexDirection: 'column', gap: '1.5rem' }}
+        >
           {/* ── On this device (local + cached) ───────────────────────── */}
           <div>
             <SectionTitle icon="hard-drives">
@@ -347,7 +349,9 @@ function DiskGauge({
             total: formatFileSize(disk.total),
           })}
         </span>
-        <span>{t('storage.diskFree', { free: formatFileSize(disk.free) })}</span>
+        <span>
+          {t('storage.diskFree', { free: formatFileSize(disk.free) })}
+        </span>
       </div>
       <p
         style={{

src/features/upload/UploadPage.tsx

@@ -40,7 +40,10 @@ const MAX_CONCURRENCY = 3;
 
 function extractError(err: unknown): string {
   if (typeof err === 'object' && err !== null) {
-    const e = err as { data?: { message?: string; detail?: string }; error?: string };
+    const e = err as {
+      data?: { message?: string; detail?: string };
+      error?: string;
+    };
     return e.data?.message ?? e.data?.detail ?? e.error ?? 'Upload failed';
   }
   return 'Upload failed';
@@ -65,12 +68,17 @@ export function UploadPage() {
   const pending = useRef<QueueItem[]>([]);
 
   const patchItem = (id: string, patch: Partial<QueueItem>) =>
-    setItems((prev) => prev.map((it) => (it.id === id ? { ...it, ...patch } : it)));
+    setItems((prev) =>
+      prev.map((it) => (it.id === id ? { ...it, ...patch } : it)),
+    );
 
   // Ref-based concurrency pump: refs (not state) so it is safe to call from
   // async callbacks without stale closures over the queue.
   const pump = () => {
-    while (activeCount.current < MAX_CONCURRENCY && pending.current.length > 0) {
+    while (
+      activeCount.current < MAX_CONCURRENCY &&
+      pending.current.length > 0
+    ) {
       const item = pending.current.shift()!;
       activeCount.current += 1;
       patchItem(item.id, { status: 'uploading', error: undefined });
@@ -182,7 +190,9 @@ export function UploadPage() {
           >
             <div style={{ fontSize: '2rem' }}>⬆</div>
             <div style={{ fontWeight: 600 }}>{t('upload.dropzone.title')}</div>
-            <div style={{ fontSize: '0.8125rem', color: 'var(--color-text-3)' }}>
+            <div
+              style={{ fontSize: '0.8125rem', color: 'var(--color-text-3)' }}
+            >
               {t('upload.dropzone.hint')}
             </div>
             <Button variant="primary" size="sm" type="button">
@@ -202,7 +212,11 @@ export function UploadPage() {
 
           {items.length > 0 && (
             <div
-              style={{ display: 'flex', flexDirection: 'column', gap: '0.5rem' }}
+              style={{
+                display: 'flex',
+                flexDirection: 'column',
+                gap: '0.5rem',
+              }}
             >
               <div
                 style={{

src/i18n/locales/en.ts

@@ -133,7 +133,8 @@ const en = {
     },
     offline: {
       title: 'Artist not available offline',
-      description: "You're offline and this artist isn't cached on this device.",
+      description:
+        "You're offline and this artist isn't cached on this device.",
     },
   },
   playlist: {
@@ -237,7 +238,8 @@ const en = {
     retry: 'Retry',
     comingSoon: 'Coming soon',
     back: 'Back',
-    offlineBanner: "You're offline — showing locally available data, read-only.",
+    offlineBanner:
+      "You're offline — showing locally available data, read-only.",
   },
   storage: {
     subtitle: 'Everything this instance has tucked away',
@@ -352,6 +354,48 @@ const en = {
       error: 'Failed',
     },
   },
+  discover: {
+    title: 'Search & download',
+    subtitle: 'Find music on connected sources and add it to your library.',
+    searchPlaceholder: 'Search for a song, artist, or album…',
+    searchButton: 'Search',
+    allSources: 'All sources',
+    noSources:
+      'No download sources are configured. Enable a source (e.g. YouTube Music) on the server to search and download.',
+    startTitle: 'Search to get started',
+    startDesc: 'Results from your connected sources will appear here.',
+    emptyTitle: 'No results',
+    emptyDesc: 'Try a different search term or another source.',
+    searchError: "Couldn't search right now. Try again.",
+    download: 'Download',
+    retryDownload: 'Retry',
+    queued: 'Queued',
+    inLibrary: 'In library',
+    viewDownloads: 'View downloads',
+  },
+  downloads: {
+    title: 'Downloads',
+    subtitle: 'Track downloads in progress, completed, and failed.',
+    activeCount: '{{count}} active',
+    sectionActive: 'In progress',
+    sectionHistory: 'History',
+    emptyTitle: 'No downloads yet',
+    emptyDesc: 'Find music in Search & download to queue it here.',
+    loadError: "Couldn't load downloads.",
+    failedBanner:
+      '{{count}} download(s) failed. Retry them, or check the source on the server.',
+    attempt: 'Attempt {{count}}',
+    open: 'Open',
+    retry: 'Retry',
+    cancel: 'Cancel',
+    status: {
+      queued: 'Queued',
+      downloading: 'Downloading',
+      enriching: 'Enriching',
+      done: 'Done',
+      failed: 'Failed',
+    },
+  },
   metadata: {
     status: {
       pending: 'Enriching…',

src/i18n/locales/ru.ts

@@ -355,6 +355,49 @@ const ru: Translations = {
       error: 'Ошибка',
     },
   },
+  discover: {
+    title: 'Поиск и скачивание',
+    subtitle:
+      'Находите музыку в подключённых источниках и добавляйте в библиотеку.',
+    searchPlaceholder: 'Найти трек, исполнителя или альбом…',
+    searchButton: 'Найти',
+    allSources: 'Все источники',
+    noSources:
+      'Источники скачивания не настроены. Включите источник (например, YouTube Music) на сервере, чтобы искать и скачивать.',
+    startTitle: 'Начните с поиска',
+    startDesc: 'Здесь появятся результаты из подключённых источников.',
+    emptyTitle: 'Ничего не найдено',
+    emptyDesc: 'Попробуйте другой запрос или другой источник.',
+    searchError: 'Не удалось выполнить поиск. Попробуйте ещё раз.',
+    download: 'Скачать',
+    retryDownload: 'Повторить',
+    queued: 'В очереди',
+    inLibrary: 'В библиотеке',
+    viewDownloads: 'К загрузкам',
+  },
+  downloads: {
+    title: 'Загрузки',
+    subtitle: 'Активные, завершённые и неуспешные скачивания.',
+    activeCount: 'Активных: {{count}}',
+    sectionActive: 'В процессе',
+    sectionHistory: 'История',
+    emptyTitle: 'Пока нет загрузок',
+    emptyDesc: 'Найдите музыку в разделе «Поиск и скачивание».',
+    loadError: 'Не удалось загрузить список.',
+    failedBanner:
+      'Неуспешных скачиваний: {{count}}. Повторите их или проверьте источник на сервере.',
+    attempt: 'Попытка {{count}}',
+    open: 'Открыть',
+    retry: 'Повторить',
+    cancel: 'Отменить',
+    status: {
+      queued: 'В очереди',
+      downloading: 'Скачивание',
+      enriching: 'Обработка',
+      done: 'Готово',
+      failed: 'Ошибка',
+    },
+  },
   metadata: {
     status: {
       pending: 'Обработка…',

src/index.tsx

@@ -17,6 +17,7 @@ import './api/endpoints/auth';
 import './api/endpoints/library';
 import './api/endpoints/playlists';
 import './api/endpoints/downloads';
+import './api/endpoints/search';
 import './api/endpoints/likes';
 import './api/endpoints/storage';
 import './api/endpoints/admin';

src/routes/index.tsx

@@ -44,7 +44,9 @@ const DownloadsManagerPage = lazy(() =>
   })),
 );
 const UploadPage = lazy(() =>
-  import('../features/upload/UploadPage').then((m) => ({ default: m.UploadPage })),
+  import('../features/upload/UploadPage').then((m) => ({
+    default: m.UploadPage,
+  })),
 );
 const MetadataEditorPage = lazy(() =>
   import('../features/metadata-editor/MetadataEditorPage').then((m) => ({
@@ -126,7 +128,10 @@ export function AppRoutes() {
 
         {/* Storage */}
         <Route path="/storage" element={<StoragePage />} />
-        <Route path="/storage/maintenance" element={<StorageMaintenancePage />} />
+        <Route
+          path="/storage/maintenance"
+          element={<StorageMaintenancePage />}
+        />
 
         {/* Queue (narrow viewports) */}
         <Route path="/queue" element={<QueuePage />} />

src/store/rtkqPersist.ts

@@ -32,7 +32,11 @@ function snapshot(apiState: ApiState): RehydrateApiPayload {
   }
   // Carry `provided` along so RTKQ can re-register invalidation tags for the
   // restored entries; it is also required structurally (see RehydrateApiPayload).
-  return { queries, mutations: {}, provided: apiState.provided ?? EMPTY_PROVIDED };
+  return {
+    queries,
+    mutations: {},
+    provided: apiState.provided ?? EMPTY_PROVIDED,
+  };
 }
 
 function load(): RehydrateApiPayload | null {

tests/rtkqPersist.test.ts

@@ -20,7 +20,13 @@ beforeEach(() => {
 
 function apiStateWith(queries: Record<string, unknown>) {
   return {
-    api: { queries, mutations: {}, provided: {}, subscriptions: {}, config: {} },
+    api: {
+      queries,
+      mutations: {},
+      provided: {},
+      subscriptions: {},
+      config: {},
+    },
   } as unknown as RootState;
 }
 

tests/sw-core.test.ts

@@ -7,9 +7,9 @@ import {
 } from '../public/sw-core.js';
 
 test('trackIdFromUrl extracts the content id from a stream URL', () => {
-  expect(
+  expect(trackIdFromUrl('https://host/api/v1/stream/abc123?token=xyz')).toBe(
-    trackIdFromUrl('https://host/api/v1/stream/abc123?token=xyz'),
+    'abc123',
-  ).toBe('abc123');
+  );
   expect(trackIdFromUrl('https://host/api/v1/library/albums')).toBeNull();
 });