List database projects

curl --request GET \
  --url https://api.case.dev/database/v1/projects \
  --header 'Authorization: Bearer <token>'

{
  "projects": [
    {
      "id": "proj_abc123",
      "name": "case-management-db",
      "description": "Production database for case management system",
      "region": "aws-us-east-1",
      "pgVersion": 17,
      "status": "active",
      "storageSizeBytes": 1073741824,
      "computeTimeSeconds": 3600,
      "linkedDeployments": [
        {
          "type": "thurgood",
          "id": "app_xyz789",
          "name": "case-portal",
          "url": "https://case-portal.case.systems"
        }
      ],
      "createdAt": "2025-01-10T08:00:00Z",
      "updatedAt": "2025-01-15T10:30:00Z"
    }
  ]
}