refactor: 企业级目录重构与播放/关于页体验升级

- 按 app / shared / entities / features 分层，路由懒加载并抽出布局组件
- 请求层改为可插拔拦截器，统一错误类型、超时取消与端点拆分
- 抽取播放器、骨架屏、网格等复用组件，点赞收藏接入统一交互反馈
- 关于页重做为无边框极光风格，补充 iOS / Google Play 下载入口
- 修复播放页滚轮切集吞事件、页面误滚动、后台持续播放与声音记忆问题
- 语言按本地偏好与 IP 识别，国旗改为内联 SVG
- 清理未使用的旧站点文件，补充 ESLint 配置

src/features/search/SearchPage.jsx

@@ -0,0 +1,49 @@
+// Author: fruit.com.cn
+import { Search as SearchIcon } from 'lucide-react';
+import { useSearchParams } from 'react-router-dom';
+import { useLocale } from '../../app/providers/AppProviders';
+import { SectionHeading } from '../../shared/components/SectionHeading';
+import { VideoGrid } from '../../shared/components/VideoGrid';
+import { VideoGridSkeleton } from '../../shared/components/skeletons';
+import { useRequest } from '../../shared/hooks/useRequest';
+import { normalizePage } from '../../shared/lib/pagination';
+import { dramaApi } from '../../entities/drama/api';
+import { normalizeDrama, uniqueDramas } from '../../entities/drama/model';
+import { searchApi } from './api';
+
+async function loadSearchResults(keyword, localeCode, signal) {
+  if (keyword) {
+    const payload = await searchApi.search(keyword, { signal });
+    return normalizePage(payload).list.map((item) => normalizeDrama(item, localeCode));
+  }
+  const payload = await dramaApi.homeFeed({ signal });
+  const items = payload?.sections?.flatMap((section) => section.dramas || []) || [];
+  return uniqueDramas(items.map((item) => normalizeDrama(item, localeCode)));
+}
+
+export function SearchPage() {
+  const { locale } = useLocale();
+  const [params] = useSearchParams();
+  const query = (params.get('q') || '').trim();
+  const request = useRequest(({ signal }) => loadSearchResults(query, locale.code, signal), [query, locale.code]);
+  const results = request.data || [];
+
+  return (
+    <>
+      <SectionHeading title={query ? `${locale.searchResults} “${query}”` : locale.picks} />
+      {request.loading ? <VideoGridSkeleton count={6} label={locale.loading} /> : (
+        <>
+          {request.error && <div className="api-note warning">{locale.apiFallback}</div>}
+          {!request.error && query && results.length === 0 ? (
+            <div className="search-empty">
+              <SearchIcon size={28} />
+              <b>{locale.noResults} “{query}”</b>
+            </div>
+          ) : (
+            <VideoGrid items={results} />
+          )}
+        </>
+      )}
+    </>
+  );
+}