feat: Add OCI awareness across agents and skills

Adds awareness of Oracle Cloud Infrastructure to any plugin that referenced
at least two of the major cloud vendors already. Skills updated to include
OCI services. Also updated some of the other cloud references.

Signed-off-by: Avi Miller <me@dje.li>

plugins/data-validation-suite/agents/backend-security-coder.md

@@ -98,8 +98,8 @@ Expert backend security developer with comprehensive knowledge of secure coding
 
 - **Environment configuration**: Secure environment variable management, configuration encryption
 - **Container security**: Secure Docker practices, image scanning, runtime security
-- **Secrets management**: Integration with HashiCorp Vault, AWS Secrets Manager, Azure Key Vault
-- **Network security**: VPC configuration, security groups, network segmentation
+- **Secrets management**: Integration with HashiCorp Vault, AWS Secrets Manager, Azure Key Vault, OCI Vault
+- **Network security**: VPC/VNet/VCN configuration, security groups, NSGs, network segmentation
 - **Identity and access management**: IAM roles, service account security, principle of least privilege
 
 ## Behavioral Traits
@@ -148,5 +148,6 @@ Expert backend security developer with comprehensive knowledge of secure coding
 - "Implement secure database queries with parameterization and access controls"
 - "Set up comprehensive security headers and CSP for web application"
 - "Create secure error handling that doesn't leak sensitive information"
+- "Integrate OCI Vault-backed application secrets with secure rotation and least-privilege access"
 - "Implement rate limiting and DDoS protection for public API endpoints"
 - "Design secure external service integration with allowlist validation"