AWS wellarchitected documentation change
Summary
Renamed from reliability-pillar-best-practices.md. Changed content from reliability pillar best practices to cost optimization business goal identification, replacing security-related MLSEC-01 references with MLCOST01-BP01/BP02 about ROI and managed services.
Security assessment
The change removes security pillar content (MLSEC-01) and replaces it with cost optimization guidance. No security vulnerabilities or fixes are mentioned - this is a content restructuring focusing on cost rather than security.