Add typed hook system for plugins

Replace invokeHook and the per plugin on* methods with AsyncHook
collections on the controller, host, instance, clusterioctl and web
control objects. Plugin entrypoints export a default function that
receives a load context and attaches handlers to the hooks it needs.
Class exports still load through fromContext with a deprecation
warning. The create templates and docs use the entrypoint function.

This is clusterio/clusterio#921 recreated on top of master after the
ESM migration and the PluginDeclaration permissions change.

Closes #730

Co-Authored-By: Cooldude2606 <25043174+Cooldude2606@users.noreply.github.com>
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

packages/web_ui/src/components/BaseConfigTree.tsx

@@ -33,11 +33,11 @@ function getInitialValues(config: lib.Config<any>, props: BaseConfigTreeProps) {
 	return initialValues;
 }
 
-function renderInput(inputComponents: Record<string, InputComponent>, def: lib.FieldDefinition, readonly: boolean) {
-	if (def.inputComponent && Object.prototype.hasOwnProperty.call(inputComponents, def.inputComponent)) {
+function renderInput(inputComponents: Map<string, InputComponent>, def: lib.FieldDefinition, readonly: boolean) {
+	if (def.inputComponent && inputComponents.has(def.inputComponent)) {
 		// Field.Item will provide the value and onChange props to the component.
 		type InputPartial = React.ComponentClass<Omit<InputComponentProps, "value" | "onChange">>;
-		const CustomInput = inputComponents[def.inputComponent] as unknown as InputPartial;
+		const CustomInput = inputComponents.get(def.inputComponent) as unknown as InputPartial;
 		return <CustomInput fieldDefinition={def} disabled={readonly} />;
 	}
 	if (def.type === "boolean") {
@@ -291,7 +291,7 @@ function computeTreeData(
 				children: [],
 			};
 
-			if (def.type === "object" && !Object.keys(control.inputComponents).includes(def.inputComponent!)) {
+			if (def.type === "object" && !control.inputComponents.has(def.inputComponent!)) {
 				let restartRequiredProps = new Set(def.restartRequiredProps || []);
 				childNode.title = <Form.Item
 					label={<>