✨ controllercmd: add WithServingTLSConfig for programmatic TLS override on the health/metrics server

[zhujian7]

Summary

• Add ServingMinTLSVersion and ServingCipherSuites fields to ControllerCommandConfig with a chainable WithServingTLSConfig(minTLSVersion, cipherSuites) setter
• In StartController(), apply these overrides to config.ServingInfo before builder.WithServer() so that SetRecommendedHTTPServingInfoDefaults (which uses DefaultString) does not clobber them
• Lets callers enforce a minimum TLS version (e.g. VersionTLS13) or custom cipher suites on the 8443 health/metrics server

Related issue(s)

N/A

Testing

Added unit tests in pkg/controller/controllercmd/cmd_test.go covering:

• WithServingTLSConfig sets fields correctly
• Method chaining works
• Overrides are applied to config.ServingInfo before defaults are set
• No override leaves ServingInfo empty so defaults kick in normally

🤖 Generated with Claude Code

[openshift-ci]

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This pull-request has been approved by: zhujian7
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[openshift-ci]

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