New /search route manages tenants and corpora on the arcadia-search
box via its privileged /admin/* surface (default :7801) — KPI tiles,
flat tenant×corpus table with Rebuild / Edit config / Delete
actions, New tenant / New corpus dialogs, and a Restart service
button. New app/lib/search-admin.ts wraps the bearer-token fetch.
Configured by VITE_ARCADIA_SEARCH_ADMIN_URL +
VITE_ARCADIA_SEARCH_ADMIN_TOKEN; the route renders a warning banner
when the token is unset. Token ships in the client bundle — fine for
this internal tool, called out in CLAUDE.md and the source comments.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
