[TASK] Generate Volumes API Client

[thaorell]

Certification

• I certify I am an Epic Owner for Kubeflow Notebooks 2.0 and expected to create planning-related issues.

Description

We need to auto-generate Volumes client, adding the new type-safe models and API methods (e.g., listPvcs, createPvcs, listStorageClasses) to include the new CRUD endpoints.

Depends on #905

Acceptance Criteria

• Execute generating script.
• The auto-generated API client file (e.g., src/api/generated/client.ts) includes the new volumes-related interfaces
• The generated client file also clearly shows the addition of new methods for the volumes endpoints (Pvcs and storageclasses)

[thaorell]

/area frontend
/area v2
/assign