feat: add label feature (#955)

Co-authored-by: 刘建辉 <liujianhui@gongchang.com>

src/Types/Chat.ts

@@ -1,6 +1,7 @@
 import type { proto } from '../../WAProto'
 import type { AccountSettings } from './Auth'
 import type { BufferedEventData } from './Events'
+import type { LabelActionBody } from './Label'
 import type { ChatLabelAssociationActionBody } from './LabelAssociation'
 import type { MessageLabelAssociationActionBody } from './LabelAssociation'
 import type { MinimalMessage } from './Message'
@@ -90,6 +91,8 @@ export type ChatModification =
         lastMessages: LastMessageList
     }
     | { delete: true, lastMessages: LastMessageList }
+    // Label
+    | { addLabel: LabelActionBody }
     // Label assosiation
     | { addChatLabel: ChatLabelAssociationActionBody }
     | { removeChatLabel: ChatLabelAssociationActionBody }