The WHOOP and Fitbit OAuth callbacks redirect back with
`?whoop=connected|error` / `?fitbit=connected|error`, but the settings page
only read that param for Withings, Polar and Oura — a user returning from a
WHOOP or Fitbit round-trip landed on a silently unchanged page with no toast.
Extend the generic return handler to all four OAuth providers, add the
matching connected/failed/error i18n keys across every locale, and invalidate
both the per-card key and the consolidated envelope on a successful return.
Polar and Oura already write the shared IntegrationKey ledger but each fired
its own `/api/<provider>/status` round-trip from the card, so the page issued
one consolidated request plus three per-card ones. Fold Polar and Oura into
`/api/integrations/status` and let the cards read a passed view-model instead
of fetching, retiring the extra round-trips. The per-provider status routes
stay for the iOS and test callers.
The client bundle carries only the active locale — resolved on the
server and handed to the provider with no hydration flash, halving the
dashboard route to under a megabyte parsed (288 KiB gzip). The auth
shell renders the app chrome immediately instead of a spinner while the
session resolves in parallel, the widgets request folds into the
snapshot it duplicated, and insight pills prefetch their sub-pages —
a first visit to a sub-page lands in about ninety milliseconds instead
of nearly a second.
Marc-André Bombeck