feat(anime): add anime browser powered by Aniyomi extensions

- Add `subminer anime` / `--anime` and a tray entry to open a browser that searches installed Aniyomi extension sources, shows cover art and episodes, and plays into mpv with overlay/mining attached
- Add an Extensions tab to add repos and install/update/remove sources, and per-source settings for sources needing config
- Support searching all sources at once with streaming, per-source results and status
- Prefer Japanese audio/subtitle tracks from the source and keep the primary subtitle slot reserved for Japanese
- Fix window/tray/Dock handling so the browser and mpv can be switched between without quitting the app or losing the Dock icon
- Add anime.repos, anime.extensionsDir, anime.preferredQuality config keys (no bundled repos or discovery)

src/animeui/format.test.ts

@@ -0,0 +1,60 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { describeInstalled, sourceOptionLabel, summarizeSearch } from './format';
+import type { AnimeBrowserSearchResult } from '../types/anime-browser';
+
+const result = (
+  entryCount: number,
+  failures: AnimeBrowserSearchResult['failures'] = [],
+): AnimeBrowserSearchResult => ({
+  entries: Array.from({ length: entryCount }, (_unused, index) => ({
+    url: `/a/${index}`,
+    title: `Anime ${index}`,
+    thumbnailUrl: null,
+    sourceId: 's',
+    sourceName: 'Source',
+  })),
+  hasNextPage: false,
+  failures,
+});
+
+test('sourceOptionLabel omits the language for an all-language source', () => {
+  assert.equal(sourceOptionLabel({ id: '1', name: 'Nyaa', lang: 'ja', pkg: 'p' }), 'Nyaa (ja)');
+  assert.equal(sourceOptionLabel({ id: '2', name: 'Jellyfin', lang: 'all', pkg: 'p' }), 'Jellyfin');
+});
+
+test('summarizeSearch counts results and singularizes one', () => {
+  assert.equal(summarizeSearch(result(4)), '4 results');
+  assert.equal(summarizeSearch(result(1)), '1 result');
+  assert.equal(summarizeSearch(result(0)), '0 results');
+});
+
+test('summarizeSearch names the sources that failed alongside the ones that answered', () => {
+  const summary = summarizeSearch(
+    result(6, [
+      { sourceId: 'a', sourceName: 'Alpha', error: 'login required' },
+      { sourceId: 'b', sourceName: 'Beta', error: 'timed out' },
+    ]),
+  );
+  assert.equal(summary, '6 results · 2 unavailable: Alpha, Beta');
+});
+
+test('describeInstalled reports sources and languages when the extension loaded', () => {
+  assert.equal(
+    describeInstalled({
+      pkg: 'multi',
+      name: 'One, Two',
+      langs: ['en', 'ja'],
+      sourceCount: 2,
+      error: null,
+    }),
+    'multi · 2 sources · en, ja',
+  );
+});
+
+test('describeInstalled falls back to the package alone when nothing loaded', () => {
+  assert.equal(
+    describeInstalled({ pkg: 'broken', name: 'broken', langs: [], sourceCount: 0, error: 'boom' }),
+    'broken',
+  );
+});