As a cost manager, I want to integrate AWS billing data with my OpenShift cost data

Description: As a cost management administrator running OpenShift on AWS, I want to configure AWS cost integration so that I can view consolidated reports showing both my OpenShift workload costs and the underlying AWS EC2, EBS, networking, and other service costs.

Acceptance Criteria:

• [ ] Support AWS Cost and Billing API integration
• [ ] Support AWS Cost Explorer API for detailed cost breakdowns
• [ ] Handle AWS IAM roles and cross-account access scenarios
• [ ] Process AWS CUR (Cost and Usage Report) files from S3
• [ ] Correlate AWS resources (EC2 instances, EBS volumes) with OpenShift nodes and PVCs
• [ ] Support multiple AWS accounts under a single organization
• [ ] Handle AWS Reserved Instance and Savings Plan allocations
• [ ] Process AWS tags for cost allocation and filtering

Technical Requirements:

• S3 integration for CUR file processing
• IAM role assumption capabilities
• Resource correlation logic (EC2 instance ID → OpenShift node mapping)
• Support for AWS Organizations multi-account structures

Definition of Done:

• [ ] AWS billing data is successfully ingested
• [ ] OpenShift nodes are mapped to their underlying EC2 instances
• [ ] Consolidated cost reports show both OpenShift and AWS costs
• [ ] Cost allocation works correctly across AWS accounts and OpenShift namespaces
• [ ] Integration tests validate data accuracy