client.current and createScopedClient resolve transport via dispatchFor:
web -> absolute origin + /api base with an X-Honcho-Upstream header; Tauri ->
absolute instance URL + reqwest. Absolute base (not bare "/api") so openapi-fetch
can construct a Request under node/undici and in the browser alike. Fleet fan-out
is unchanged; fleet.test.tsx now asserts the proxy contract.
Adds createScopedClient() — an openapi-fetch client bound to a specific
Instance (rather than the active one in localStorage) — and the
useScoped* TanStack Query hooks (workspaces, peers, peer representation,
peer card) with per-instance query-key isolation so caches never collide
across instances.
Foundation for multi-instance features (seed kits, desktop
auto-discover) that read from non-active instances.
Co-authored-by: Ben Sheridan-Edwards <BenSheridanEdwards@users.noreply.github.com>
