feat: add settings.Updater interface to ServiceDeps

plugin/deps.go

@@ -50,6 +50,7 @@ type ServiceDeps struct {
 	CoreServiceBindings CoreServiceBindings
 	ReviewSubmitter     ReviewSubmitter
 	BadgeRefresher      BadgeRefresher
+	SettingsUpdater     settings.Updater
 
 	// Extension points — typed as narrow interfaces where possible
 	JobRunner        JobRunner

settings/settings.go

@@ -8,6 +8,11 @@ type Settings interface {
 	GetPluginSettings(ctx context.Context, pluginName string) (map[string]any, error)
 }
 
+// Updater allows plugins to modify site settings.
+type Updater interface {
+	UpdateSiteSetting(ctx context.Context, key string, value any) error
+}
+
 // GetStringOr returns a string value from a map, or defaultVal if not found/wrong type.
 func GetStringOr(m map[string]any, key, defaultVal string) string {
 	if v, ok := m[key].(string); ok {