feat: add notification for login and logout

src/user.ts

@@ -3,6 +3,7 @@ import * as path from 'path';
 import * as os from 'os';
 import * as fs from 'fs';
 import DevstarAPIHandler from './devstar-api';
+import { showErrorNotification } from './utils';
 const {
   generateKeyPairSync,
   createHash
@@ -56,10 +57,12 @@ export default class User {
           throw new Error('Upload user public key failed')
         }
       }
-
+      
+      vscode.window.showInformationMessage('用户已登录！')
       return 'ok'
     } catch (error) {
       console.error(error)
+      await showErrorNotification('用户登录失败！')
       return 'login failed'
     }
   }
@@ -67,6 +70,7 @@ export default class User {
   public logout() {
     this.setUserTokenToLocal("")
     this.setUsernameToLocal("")
+    vscode.window.showInformationMessage('用户已登出！')
   }
 
   public isLogged() {