feat(sites): structure release detail pages and rework the detail drawer (DETAIL-1)

Adapters (pure functions + tests):
- detail-description: strip HTML/BBCode residue, drop site template blocks and
  ad/signature lines (configurable rules), parse PT info blocks (◎ / 【】 / 『』 /
  「键:」) into infoBlock and body paragraphs
- mediainfo: MediaInfo and BDInfo (quick summary + full report) into a summary
  of container/duration/bitrate/size, video (HDR/DV), audio and subtitle tracks
- file-tree: file list into a flattened directory tree with sizes and
  main/sample/subtitle/extra roles
- formatDetailPage combines them; the server computes it when reading the
  cached detail page, so existing caches benefit without a refetch

Contracts: SiteReleasePage gains infoBlock, paragraphs, media, fileTree.

Web: drawer now reads top-down: meta row (promo/H&R, size, peers, upload time,
IMDb/TMDB/豆瓣 tags) → 资料 → 简介 (collapsible) → 技术规格 (raw folded) →
截图 grid with keyboard lightbox → 文件 tree; inventory overlay moved into the
fixed footer next to 下载.

Fixtures: 6 desensitized samples from the local cache (site.detail and RSS
descriptions) plus synthetic multi-track MediaInfo, BDInfo, bracket blocks and
directory file lists.

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

packages/adapters/src/sites/index.ts

@@ -16,12 +16,23 @@ export {
   SpiderFilterSchema,
 } from "./definitions/index.ts";
 export type { SiteAdapterDeps } from "./deps.ts";
+export {
+  cleanDescription,
+  DEFAULT_DESCRIPTION_RULES,
+  type DescriptionRules,
+  type DetailInfoItem,
+  type StructuredDescription,
+  stripMarkup,
+  structureDescription,
+} from "./detail-description.ts";
+export { type FormattedDetailPage, formatDetailPage } from "./detail-format.ts";
 export {
   type FeedMediaType,
   normalizeSiteFeedItem,
   type SiteFeedItemFields,
   siteCategoryMediaType,
 } from "./feed-item.ts";
+export { buildFileTree, type FileRole, type FileTreeRow } from "./file-tree.ts";
 export {
   classifyLoginError,
   loginFailureText,
@@ -33,6 +44,14 @@ export {
   type SiteLoginFailure,
   totpCode,
 } from "./login/nexusphp.ts";
+export {
+  type MediaAudioTrack,
+  type MediaGeneral,
+  type MediaSummary,
+  type MediaTextTrack,
+  type MediaVideoTrack,
+  parseMediaSummary,
+} from "./mediainfo.ts";
 export { createMteamAdapter, mteamTorrentToRelease } from "./mteam/adapter.ts";
 export { type MteamApiPath, mteamPost } from "./mteam/client.ts";
 export { type MteamDefinition, mteamApiBase, mteamDefinition } from "./mteam/definition.ts";