Open DSS (YWC SSO)

POST /v1/partners/sso/tickets
Authorization: Basic <base64(client_id:client_secret)>
Content-Type: application/json

{ "user_id": "aQ0mtT8kRgVv7C3o1p2q3r4s5t6u" }

curl -u "$DSS_CLIENT_ID:$DSS_CLIENT_SECRET" \
  -H "Content-Type: application/json" \
  -d '{"user_id":"<dss-uid>"}' \
  https://api.digitalseaservice.com/v1/partners/sso/tickets

{
  "login_url": "https://app.digitalseaservice.com/auth/partner?ticket=…",
  "expires_in": 60
}