228-7sinStone.md

Add universeDomain parameter for GCS client

Type: Feature

Description: Introduce a new universeDomain key in the BackupStorageLocation spec.config map, allowing users to override the default Google Storage domain (defaults to "googleapis.com").

Motivation:

• Support custom or private GCS-compatible endpoints (e.g. testing, on‑prem).
• Align with Helm chart support for universeDomain.

Changes:

• Updated object_storage.go to inject option.WithUniverseDomain(...).