feat(sites): 内置公开 BT 站 Nyaa / 蜜柑 / AniBT / AnimeGarden / 萌番组

- 新专用解析器(spiders/public.ts):RSS / Torznab / JSON API,搜索 + 最新列表 + 按资源 ID 取种子或磁力
- 手写定义(definitions/public.ts,public: true),并入内置定义表;定义视图按 public 标为 public_bt
- 添加站点:公开 BT 站可从内置站一键添加(专用适配器、默认定时抓取、默认不进搜索集合),手填 RSS 保留
- 样例取自 2026-10-02 公开接口,截前两条

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

apps/web/app/components/sites/site-add-dialog.tsx

@@ -148,10 +148,34 @@ export function SiteAddDialog({ onClose, initialKind }: { onClose: () => void; i
       !needle || d.name.toLowerCase().includes(needle) || d.key.includes(needle) || d.baseUrl.includes(needle);
     return GROUP_ORDER.map((a) => ({
       adapter: a,
-      items: items.filter((d) => d.adapter === a && hit(d)).sort((x, y) => x.name.localeCompare(y.name, "zh-CN")),
+      items: items
+        .filter((d) => d.kind === "pt" && d.adapter === a && hit(d))
+        .sort((x, y) => x.name.localeCompare(y.name, "zh-CN")),
     })).filter((g) => g.items.length);
   }, [items, q]);
 
+  const publicDefs = items.filter((d) => d.kind === "public_bt");
+  /** 内置公开 BT 站:一步建好(专用适配器、定时抓最新),进站点页 */
+  const addPublic = async (d: SiteDefinitionView) => {
+    try {
+      setPhase("保存中…");
+      const site = await create.mutateAsync({
+        kind: "public_bt",
+        key: d.key,
+        adapter: d.adapter,
+        name: d.name,
+        baseUrl: d.baseUrl,
+      });
+      toast.success(`已添加「${site.name}」`);
+      onClose();
+      navigate(consolePath("sites", site.id));
+    } catch (err) {
+      toast.error(errorMessage(err, "保存失败"));
+    } finally {
+      setPhase(null);
+    }
+  };
+
   const pick = (key: string) => {
     const d = items.find((x) => x.key === key);
     setDefKey(key);
@@ -197,6 +221,32 @@ export function SiteAddDialog({ onClose, initialKind }: { onClose: () => void; i
       }}
       className="min-w-0"
     >
+      {kind === "public_bt" && publicDefs.length ? (
+        <div className="mb-4">
+          <p className="mb-2 text-caption font-medium text-foreground">内置站点</p>
+          <ul className="grid gap-2 sm:grid-cols-2">
+            {publicDefs.map((d) => (
+              <li key={d.key}>
+                <button
+                  type="button"
+                  disabled={busy || !!d.siteId}
+                  onClick={() => void addPublic(d)}
+                  className="flex w-full min-w-0 items-center justify-between gap-2 rounded-lg border border-border/70 px-3 py-2 text-left transition-colors hover:border-foreground/40 hover:bg-accent disabled:cursor-not-allowed disabled:opacity-50 disabled:hover:bg-transparent"
+                >
+                  <span className="min-w-0">
+                    <span className="block truncate text-caption font-medium text-foreground">{d.name}</span>
+                    <span className="block truncate text-meta text-muted-foreground">{hostOf(d.baseUrl)}</span>
+                  </span>
+                  {d.siteId ? <StatusBadge className="shrink-0">已添加</StatusBadge> : null}
+                </button>
+              </li>
+            ))}
+          </ul>
+          <p className="mt-3 mb-2 text-meta text-muted-foreground">
+            内置站点支持搜索和定时抓取最新资源，不需要账号。其他公开站可以在下面手动填 RSS 地址。
+          </p>
+        </div>
+      ) : null}
       <FormField label="名称" htmlFor="add-feed-name" required error={errors.name}>
         <Input
           id="add-feed-name"