feat(chat): render commercial actions and persist greetings

src/data/services/api/api_path.ts

@@ -70,6 +70,9 @@ export class ApiPath {
   /** 发送消息 */
   static readonly chatSend = apiContract.chatSend.path;
 
+  /** 幂等保存角色开场白 */
+  static readonly chatOpeningMessage = apiContract.chatOpeningMessage.path;
+
   /** 获取聊天历史 */
   static readonly chatHistory = apiContract.chatHistory.path;