[MEDIUM] Hardcoded controllerconfig name in config health check

[pradeepto]

Description

internal/controller/config_utils.go:38-39

if err := kubeClient.Get(ctx, types.NamespacedName{
    Name:      "controllerconfig",

The ControllerConfig CR name is hardcoded as "controllerconfig". If the user names their CR anything else the health check silently fails with a "not found" error that looks like a cluster issue.

Fix

Either:

• Make it configurable via a constant or flag
• Enforce the name via a validating webhook
• At minimum extract to a well-documented named constant