Create user-facing documentation for configuring TLS profiles (cluster-wide and operator-specific).

Documentation locations:

• OpenShift documentation (if applicable)
• Operator README.md
• Kueue Operator user guide

Content to cover:

1. Overview:

• What are TLS security profiles
• Why TLS profile configuration matters (PQC readiness)
• Supported profile types (Old, Intermediate, Modern, Custom)

2. Configuration options:

• Cluster-wide configuration via APIServer
• Operator-specific override via Kueue CRD
• Precedence order (CRD > APIServer > Intermediate default)

3. Examples:

# Example: Set TLS profile in Kueue CRD
apiVersion: kueue.openshift.io/v1
kind: Kueue
metadata:   name: cluster
spec:   tlsSecurityProfile:     type: Intermediate

# Example: Custom TLS profile
spec:   tlsSecurityProfile:     type: Custom
    custom:       minTLSVersion: VersionTLS12
      ciphers:         - TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
        - TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384

4. Troubleshooting:

• How to verify TLS settings
• Common issues and solutions

Acceptance Criteria:

• Documentation covers all configuration options
• Examples are tested and working
• Documentation is reviewed and published

Depends on: OCPKUEUE-465 (E2E tests complete)