feat(web): global search — top bar entry, Ctrl/Cmd+K palette and /console/search results (FE-3)

- palette queries media + actions: local works open, TMDB candidates view/subscribe, page jumps
- results page: works / releases / actions; release filters, facets, sort, cursor, partial-site warning
- release rows: download via /search/releases/{siteId}/{siteReleaseId}/plan, delegate to Agent
- smoke: rules tabs, preferences redirect, search page

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

apps/web/app/routes/console/layout.tsx

@@ -10,6 +10,8 @@ import { AgentLauncher, AgentNavEntry } from "~/components/console/agent-launche
 import { ErrorState } from "~/components/console/empty-state.tsx";
 import { findNavItem, NAV_GROUPS, type NavGroup, type NavItem } from "~/components/console/nav.ts";
 import PrismLeak from "~/components/prism-leak.tsx";
+import { CommandPalette } from "~/components/search/command-palette.tsx";
+import { SearchTrigger } from "~/components/search/search-trigger.tsx";
 import { ThemeToggle } from "~/components/theme-toggle.tsx";
 import { Button } from "~/components/ui/button.tsx";
 import { Sheet, SheetContent, SheetHeader, SheetTitle, SheetTrigger } from "~/components/ui/sheet.tsx";
@@ -260,6 +262,7 @@ function ConsoleShell({ session }: { session: SessionInfo }) {
             <span className="truncate text-sm font-semibold text-foreground">{activeLabel}</span>
           </div>
           <div className="ml-auto flex items-center gap-2">
+            <SearchTrigger />
             {/* 桌面有侧栏主入口与右下角悬浮按钮,顶栏小按钮只在窄屏保留 */}
             <AgentDrawerTrigger className="xl:hidden" />
             <ThemeToggle />
@@ -275,6 +278,7 @@ function ConsoleShell({ session }: { session: SessionInfo }) {
         </main>
         <AgentDrawer />
         <AgentLauncher />
+        <CommandPalette />
       </div>
     </div>
   );