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/controller/src/ControlConnection.ts

@@ -63,9 +63,7 @@ export default class ControlConnection extends BaseConnection {
 
 		for (let event of ["connect", "drop", "resume", "close"] as const) {
 			this.connector.on(event, () => {
-				for (let controllerPlugin of this._controller.plugins.values()) {
-					controllerPlugin.onControlConnectionEvent(this, event);
-				}
+				this._controller.hooks.controlConnectionEvent.invoke(this, event);
 			});
 		}
 
@@ -1310,7 +1308,7 @@ export default class ControlConnection extends BaseConnection {
 	async handlePluginListRequest(request: lib.PluginListRequest) {
 		return this._controller.pluginInfos.map(pluginInfo => lib.PluginDetails.fromNodeEnvInfo(
 			pluginInfo,
-			this._controller.plugins.has(pluginInfo.name),
+			this._controller.loadedPlugins.has(pluginInfo),
 			this._controller.config.get(`${pluginInfo.name}.load_plugin`),
 		));
 	}