refactor: extract bootstrap annotation key format string into a helper function

[Shreya2005-2005]

Describe the issue

The annotation key format string for bootstrap completion tracking is
duplicated in two separate functions in
internal/controller/node_controller.go:

• Line 327 in isBootstrapCompleted
• Line 335 in markBootstrapCompleted

Both use:

fmt.Sprintf("readiness.k8s.io/bootstrap-completed-%s", ruleName)

If one is updated but not the other, it causes a silent bug where
bootstrap completion is never detected.

Expected behavior

Extract into a single helper function:

func bootstrapAnnotationKey(ruleName string) string {
    return fmt.Sprintf("readiness.k8s.io/bootstrap-completed-%s", ruleName)
}

File

internal/controller/node_controller.go lines 327, 335

Are you able to fix this issue?

Yes (I will propose a PR)

[ajaysundark]

already addressed by #224

/close

[k8s-ci-robot]

@ajaysundark: Closing this issue.

Details

In response to this:

already addressed by #224

/close

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