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/InstanceManager.ts

@@ -83,12 +83,7 @@ export default class InstanceManager {
 		instance: InstanceRecord,
 		prev?: lib.InstanceStatus,
 	): Promise<void> {
-		await lib.invokeHook(
-			this._controller.plugins,
-			"onInstanceStatusChanged",
-			instance,
-			prev,
-		);
+		await this._controller.hooks.instanceStatusChanged.invoke(instance, prev);
 	}
 
 	private async _notifyConfigFieldChanged(
@@ -97,14 +92,7 @@ export default class InstanceManager {
 		curr: unknown,
 		prev: unknown,
 	): Promise<void> {
-		await lib.invokeHook(
-			this._controller.plugins,
-			"onInstanceConfigFieldChanged",
-			instance,
-			field,
-			curr,
-			prev,
-		);
+		await this._controller.hooks.instanceConfigFieldChanged.invoke(instance, field, curr, prev);
 	}
 
 	/**