regression: `lastChat` property missing on contact channel migrated from visitor (#34025)

apps/meteor/app/livechat/server/lib/contacts/mapVisitorToContact.spec.ts

@@ -120,6 +120,10 @@ const dataMap: [Partial<ILivechatVisitor>, IOmnichannelSource, CreateContactPara
 					details: {
 						type: OmnichannelSourceType.WIDGET,
 					},
+					lastChat: {
+						_id: 'last-chat-id',
+						ts: testDate,
+					},
 				},
 			],
 			customFields: undefined,

apps/meteor/app/livechat/server/lib/contacts/mapVisitorToContact.ts

@@ -22,6 +22,7 @@ export async function mapVisitorToContact(visitor: ILivechatVisitor, source: IOm
 				blocked: false,
 				verified: false,
 				details: source,
+				lastChat: visitor.lastChat,
 			},
 		],
 		customFields: visitor.livechatData,