The DKN Cloud NA API returns 404 (not 401) when tokens are expired,
which caused the integration to silently fail with UpdateFailed
indefinitely instead of attempting a token refresh or triggering
reauth. Refreshed tokens were also only held in memory, so they
were lost on Home Assistant restart.
- Add 404 to auth_error_statuses on is_logged_in, refresh_access_token,
and fetch_installations.
- Persist refreshed access + refresh tokens back to the config entry
after each successful coordinator update.
- Skip the entry reload listener for token-only option updates to
avoid a reload loop on every refresh.
- Log API 4xx responses at WARNING with the body so failures are
visible in HA logs without enabling debug logging.
thatguygriff
