feat(web): IA-3 navigation, legacy redirects and top-bar inbox (FE-1)

Sidebar becomes 5 groups (overview / resources / subscriptions / organize /
system). Pending items move to a top-bar inbox with badge and grouped
dropdown. Engine panel, schedules and identity pages redirect to the task
page, its plan tab and media overview views; the download plan becomes a
second tab of the download panel. nav.test and smoke cover the new routes.

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

apps/web/app/routes.ts

@@ -35,6 +35,7 @@ export default [
       route("audit", "routes/console/audit.tsx"),
       route("settings", "routes/console/settings.tsx"),
       route("schedules", "routes/console/schedules.tsx"),
+      route("status", "routes/console/status.tsx"),
     ]),
   ]),
   route("*", "routes/not-found.tsx"),