OpenFeature: Add config setting to disable API (#108620)

* Add config option to disable ofrep api

* Apply review feedback

pkg/setting/setting_openfeature.go

@@ -11,6 +11,7 @@ const (
 )
 
 type OpenFeatureSettings struct {
+	APIEnabled   bool
 	ProviderType string
 	URL          *url.URL
 	TargetingKey string
@@ -21,6 +22,7 @@ func (cfg *Cfg) readOpenFeatureSettings() error {
 	cfg.OpenFeature = OpenFeatureSettings{}
 
 	config := cfg.Raw.Section("feature_toggles.openfeature")
+	cfg.OpenFeature.APIEnabled = config.Key("enable_api").MustBool(true)
 	cfg.OpenFeature.ProviderType = config.Key("provider").MustString(StaticProviderType)
 	cfg.OpenFeature.TargetingKey = config.Key("targetingKey").MustString(cfg.AppURL)