[Bug]: Instance disk is always shown as 100GB in Resources

[r4victor]

Steps to reproduce

1. Create an instance with a non-default disk size:

type: fleet
name: cloud-fleet
nodes: 1..
resources:
  disk: 300GB

2. See the instance Resources description still shows 100GB disk:

"resources": {
    "disk": {
        "size_mib": 307200
    },
    "description": "cpu=2 mem=8GB disk=100GB (spot)",
}

This affects only the UI since the CLI does not use description.

Actual behaviour

No response

Expected behaviour

No response

dstack version

master

Server logs

Additional information

No response