feat(auth): add environment variables for portal SSO integration

Introduced new environment variables for the authentication portal in the production and microvps configurations. Updated the documentation to clarify the necessity of passing these variables to the evobgp-all service. This change enhances the authentication flow by enabling single sign-on (SSO) capabilities through JWT, ensuring a more secure and streamlined user experience.

deploy/compose/.env.production.example

@@ -15,3 +15,10 @@ WEBUI_DOMAIN=bgp.example.com
 WEBUI_IP_WHITELIST=203.0.113.10/32
 LETSENCRYPT_EMAIL=admin@example.com
 CF_DNS_API_TOKEN=
+
+# Auth-portal SSO → контейнер evobgp-all (не VITE_* — они только для build web)
+AUTH_REQUIRED=true
+AUTH_JWT_SECRET=
+AUTH_ISSUER=https://auth.shnt.top
+AUTH_PORTAL_URL=https://auth.shnt.top
+EVOBGP_PORTAL_TENANT_ID=