feat(web): nav regroup, site RSS tab and site types (IA-2)

- sidebar: 概览 / 获取 / 整理 / 系统. Tasks moves to 系统; sites,
  subscriptions and rules form the 获取 group (ACQUIRE_GROUP_TITLE in
  nav.ts, the single place to rename it); standalone RSS nav item removed
- site detail gets an RSS tab with everything the RSS page had (create,
  edit, enable, fetch now, fetch state) plus recent items; tabs and
  header actions follow the site's capabilities
- old /console/sources links redirect to the site's RSS tab (?feed= looks
  up the owning site) or the site list; task links to RSS point at sites
- site list shows and filters by type; add-site wizard starts with a type
  step (PT still picks from the definition library; public BT / custom
  RSS source only need name, URL and RSS URL)

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

apps/web/app/components/agent/quick-goals.ts

@@ -14,11 +14,11 @@ const RULES: Rule[] = [
   },
   {
     match: /^\/console\/sites\/[^/]+/,
-    goals: ["从这个站点找 ", "看看这个站点最近有哪些新的 4K 资源", "检查这个站点的登录和抓取是否正常"],
+    goals: ["从这个站点找 ", "看看这个站点最近有哪些新的 4K 资源", "检查这个站点的登录和 RSS 抓取是否正常"],
   },
   {
     match: /^\/console\/sites\/?$/,
-    goals: ["在所有站点里找 ", "哪个站点最近抓取失败了，原因是什么", "对比各站点最近一周的新资源数量"],
+    goals: ["在所有站点里找 ", "哪些站点或 RSS 最近抓取失败了，原因是什么", "对比各站点最近一周的新资源数量"],
   },
   {
     match: /^\/console\/tasks\/[^/]+/,
@@ -48,10 +48,6 @@ const RULES: Rule[] = [
     match: /^\/console\/subscriptions/,
     goals: ["帮我新建一个订阅：", "哪些订阅很久没有新收录了", "检查订阅的收录版本是否合理"],
   },
-  {
-    match: /^\/console\/sources/,
-    goals: ["哪些来源不新鲜了，原因是什么", "检查所有 RSS 的抓取状态", "最近一天各来源抓到了什么"],
-  },
   {
     match: /^\/console\/engine/,
     goals: ["这个任务为什么失败", "哪些工作流一直在重试", "汇总最近一小时失败的运行"],