New moderator app WIP:

* #144: moderator notes WIP,
* plugin size: adding an API,
* refactoring the code from the task app, to create a new MUC App
  system.

conversejs/custom/plugins/notes/notes.js

@@ -0,0 +1,39 @@
+// SPDX-FileCopyrightText: 2024 John Livingston <https://www.john-livingston.fr/>
+//
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import { Collection } from '@converse/skeletor/src/collection.js'
+import { ChatRoomNote } from './note'
+import { initStorage } from '@converse/headless/utils/storage.js'
+
+/**
+ * A list of {@link _converse.exports.ChatRoomNote} instances, representing notes associated to a MUC.
+ * @class
+ * @namespace _converse.exports.ChatRoomNotes
+ * @memberOf _converse
+ */
+class ChatRoomNotes extends Collection {
+  model = ChatRoomNote
+  comparator = 'order'
+
+  initialize (models, options) {
+    this.model = ChatRoomNote // don't know why, must do it again here
+    super.initialize(arguments)
+    this.chatroom = options.chatroom
+
+    const id = `converse-livechat-notes-${this.chatroom.get('jid')}`
+    initStorage(this, id, 'session')
+
+    this.on('change:order', () => this.sort())
+  }
+
+  // async createNote (data) {
+  //   console.log('Creating note...')
+  //   await this.chatroom.NoteManager.createItem(this, Object.assign({}, data))
+  //   console.log('Note created.')
+  // }
+}
+
+export {
+  ChatRoomNotes
+}