Commit 2175c24 deleted apps/web/src/routes/_app.tsx alongside __root.tsx.
Only __root was restored (28b2cbd). With _app.tsx missing, routeTree.ts's
import './routes/_app' resolved to the _app/ directory index (dashboard
route), making the route its own child — TanStack buildRouteTree throws
'Invariant failed' at module init and React never mounts (blank page, no
console error). Restores the exact file: _app pathless layout with
Sidebar/Topbar/Outlet.
bot-hermes
aa9138c11c