The dashboard was a single route that swapped section components via a
`section` state field. Convert it to the App Router's multi-page model so
each left-nav selection is its own route (/, /repositories, /agents,
/schedules, /approvals, /servers, /activity, /shared, /login), making the
pages modular and independently updatable.
- Move the token gate + store provider + sidebar into a persistent frame
(AppFrame + Shell) rendered by the root layout, so auth, the polling
loop, and shared state survive client-side navigation.
- Sidebar items are now <Link> routes; the active item and the store's
polled section are derived from the URL (lib/nav).
- Each section gets an app/<section>/page.tsx; Runs stays at root and keeps
its full-height split layout, the rest render in the shared scroll frame.
- Emit per-route index.html (trailingSlash) so the FastAPI StaticFiles
mount serves clean slash-terminated URLs with no SPA rewrite.
- Regenerate the bundled static export.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PsAeGVadULRzPhV2PRDttM