fix(sites): normalize HHClub RSS items, complete detail page parsing (HH-2)

- RSS: split NexusPHP "[category]name[subtitle][size][uploader]" titles in the
  site adapter layer (category id/name/media type, clean title, subtitle,
  size); snapshot fields win on merge; lazily renormalize old RSS rows and
  re-emit release.observed; unknown list fields show an em dash
- Detail: HHClub section layout (douban info block as description,
  screenshots section, IMDb/TMDB from MediaInfo lines, upload time field,
  on-demand viewfilelist.php once); site CDN screenshots get a Referer
- Site request count now includes site-bound RSS fetches
- Origin view shows "自动化" when idle and "Agent" only after recent
  automation actions (lastAutomationAt); agent step titles no longer get
  squeezed to a sliver by long notes

Co-Authored-By: Claude Opus 5.5 <[email protected]>

docs/runbook/browser.md

@@ -291,6 +291,9 @@ pixelflux + labwc Wayland 桌面 + Selkies 2.0 Web 客户端)+ camofox 1.17.0 **
 原站视图 Tab 调 `GET /api/v1/browser/desktop/{sessionId}/_status` 决定模式:`available`(容器 3000 能连上且有访问凭据)
 且 `window.isSecureContext` → 桌面模式(iframe);否则截图模式,顶部写原因:"桌面模式不可用:…" 或 "桌面模式需要通过 HTTPS 访问控制台"。
 桌面模式顶栏:连接状态(已连接,只读 / 可操作)、当前控制者、接管 / 交还(沿用 `control/acquire|release`)、重新连接、截图模式、关闭会话。
+「当前控制」(HH-2,两种模式共用 `coords.ts controllerLabel`):`controller = automation` 且 2 分钟内有过自动化动作(Agent 能力经
+`BrowserService.run` 成功执行,写 `recovery_state.lastAutomationAt`,会话视图字段 `lastAutomationAt`)才显示「Agent」,说明写
+「Agent 正在操作」;否则显示「自动化」,说明写「目前没有 Agent 在操作」。人工接管显示「人工接管(用户名)」,人工动作不刷新该时间。
 接管后直接在画面里点和输入;中文、日文用**本机输入法**(Selkies 接收 composition 事件,按 Unicode 注入上屏文本);
 复制粘贴用 Ctrl+C / Ctrl+V。