Quota Scope Management Improvements

**Background:**

Currently, when a vfolder creation request is made with a non-existent quota scope, the storage proxy automatically creates both the quota scope and vfolder without explicit control or user awareness. This implicit behavior limits operational flexibility. And it can prevent users from understanding and managing quota scopes as first-class resources.

**Goals:**

- Provide configurable control over automatic quota scope creation in storage proxy
- Enable explicit quota scope creation through manager API
- Allow users to create and manage quota scopes based on resource policies

JIRA Issue: BA-2700