feat(ops-web/kol): add KOL subscription review console

New /kol-subscriptions page lists pending and active subscriptions, lets
operators approve / revoke / manually bind packages to tenants, and links
into the AppShell nav under 订阅包审批. Register Alert globally so the
view's status banners render.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/ops-web/src/main.ts

@@ -1,5 +1,6 @@
 import { QueryClient, VueQueryPlugin } from "@tanstack/vue-query";
 import {
+  Alert,
   App as AntApp,
   Avatar,
   Badge,
@@ -55,6 +56,7 @@ bindUnauthorizedHandler(() => {
 });
 
 [
+  Alert,
   AntApp,
   Avatar,
   Badge,