chat interface added

Author: rawatSingh2022

package.json

@@ -18,10 +18,12 @@
   "license": "MIT",
   "homepage": "https://codeboltai.github.io",
   "dependencies": {
+    "@codebolt/common": "^1.0.3",
     "typedoc-plugin-missing-exports": "^2.2.0",
     "ws": "^8.17.0"
   },
   "devDependencies": {
+    "@types/events": "^3.0.3",
     "@types/ws": "^8.5.10",
     "jest": "^29.7.0",
     "jest-serial-runner": "^1.2.1",

src/modules/chat.ts

@@ -1,6 +1,7 @@
 // chat.ts
 import cbws from './websocket';
 import { EventEmitter } from 'events';
+import {ChatMessage} from  '@codebolt/common'
 
 /**
  * CustomEventEmitter class that extends the Node.js EventEmitter class.
@@ -13,7 +14,7 @@ export class CustomEventEmitter extends EventEmitter {}
 const cbchat = {
     eventEmitter: new CustomEventEmitter(),
 
-    getChatHistory() {
+    getChatHistory():Promise<ChatMessage[]> {
         return new Promise((resolve, reject) => {
             cbws.getWebsocket.send(JSON.stringify({
                 "type": "getChatHistory"