Fix growing memory on repeated Instance() invocation (#130)

* Fix: memory growing on repeated Instance() call

* rm accidental trunk files

* Add instantiated mod close on single mod cleanup()

* Chg to delete instance for fn chaining

* ci linter fix

module.go

@@ -155,6 +155,7 @@ func (m *module[T]) register(function *function[T]) {
 func (m *module[T]) cleanup() {
 	m.function = nil
 	m.template.runtime.activeModulesMu.Lock()
+	// m.instantiatedModule.CloseWithExitCode(m.template.runtime.config.context, 0)
 	delete(m.template.runtime.activeModules, m.instantiatedModule.Name())
 	m.template.runtime.activeModulesMu.Unlock()
 }

scale.go

@@ -70,6 +70,15 @@ func (r *Scale[T]) Instance(next ...Next[T]) (*Instance[T], error) {
 	return newInstance(r.config.context, r, next...)
 }
 
+func (r *Scale[T]) Clear() {
+  for key := range r.activeModules {
+      r.activeModules[key].instantiatedModule.CloseWithExitCode(r.config.context, 0)
+      delete(r.activeModules, key)
+  }
+
+  r.activeModules = make(map[string]*module[T])
+}
+
 // Reset any extensions between executions.
 func (r *Scale[T]) resetExtensions() {
 	for _, ext := range r.config.extensions {