feat: fix search, poster serving, and add hover overlay UI for cards

- Fix search store exports to match component expectations (inputValue,
  bangumiList, onSearch) and transform data to SearchResult format
- Fix poster endpoint path check that incorrectly blocked all requests
- Add resolvePosterUrl utility to handle both external URLs and local paths
- Move tags into hover overlay on homepage cards and calendar cards
- Show title and tags on poster hover with dark semi-transparent styling
- Add downloader API, store, and page
- Update backend to async patterns and uv migration changes
- Remove .claude/settings.local.json from tracking

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

webui/src/api/downloader.ts

@@ -0,0 +1,35 @@
+import type { QbTorrentInfo } from '#/downloader';
+import type { ApiSuccess } from '#/api';
+
+export const apiDownloader = {
+  async getTorrents() {
+    const { data } = await axios.get<QbTorrentInfo[]>(
+      'api/v1/downloader/torrents'
+    );
+    return data!;
+  },
+
+  async pause(hashes: string[]) {
+    const { data } = await axios.post<ApiSuccess>(
+      'api/v1/downloader/torrents/pause',
+      { hashes }
+    );
+    return data!;
+  },
+
+  async resume(hashes: string[]) {
+    const { data } = await axios.post<ApiSuccess>(
+      'api/v1/downloader/torrents/resume',
+      { hashes }
+    );
+    return data!;
+  },
+
+  async deleteTorrents(hashes: string[], deleteFiles: boolean = false) {
+    const { data } = await axios.post<ApiSuccess>(
+      'api/v1/downloader/torrents/delete',
+      { hashes, delete_files: deleteFiles }
+    );
+    return data!;
+  },
+};