OrcaSlicer shipped a first-class external-app pairing API (OAuth 2.0 Device
Authorization Grant), so the Supabase-PKCE copy-paste flow is replaced end to
end. Connecting is now: click Connect, approve a short code on the Orca Cloud
settings page, done — no redirect, no callback paste, no client secret, works
from a LAN IP / localhost / behind a proxy.
Backend: services/orca_cloud.py rewritten to device-code request + poll (the
four RFC outcomes) + refresh_token grant + introspection + external sync pull;
routes expose /device/start and /device/poll (device_code kept server-side in
the reused orca_cloud_pending_* columns, no migration). Requests sync:read
(read-only feature). Prod endpoint by default, ORCA_CLOUD_API_BASE overrides
to staging. Wired the shared httpx client (fixes a per-request socket leak).
Frontend: device-code connect UI + api client methods; all 11 locales updated.
The app was built dark-first, so hundreds of hardcoded Tailwind semantic
text/icon utilities at light shades (text-amber-400, text-blue-300, ...) had
no dark: variant. With darkMode:'class' they applied in light theme too,
producing washed-out text on pale tints and white cards — including the three
reported spots (AMS Drying banner, Archives no-3MF warning, debug-logging
banner). Give each a theme-aware pair: a darker readable shade in light theme
with the original pinned to dark:, so dark theme is unchanged. ~100 files.
The bambu-* CSS-variable palette (self-correcting) and the dark-only SpoolBuddy
kiosk are left untouched. Plain text-white is already theme-aware via the
existing index.css .text-white override, so it needed no changes.