Feat/Implement QQ Online File/Folder and Flash Transfer support (#1541)

* feat: implement QQ online file transfer and flash transfer support

* fix: change OnlineFile OB11Message data

* fix: add fileSize and isDir to OB11MessageOnlineFile

* fix: resolve typescript strict mode errors

packages/napcat-onebot/action/file/online/ReceiveOnlineFile.ts

@@ -0,0 +1,27 @@
+import { OneBotAction } from '@/napcat-onebot/action/OneBotAction';
+import { ActionName } from '@/napcat-onebot/action/router';
+import { Static, Type } from '@sinclair/typebox';
+import { ChatType } from 'napcat-core/types';
+
+const SchemaData = Type.Object({
+  user_id: Type.Union([Type.Number(), Type.String()]),
+  msg_id: Type.String(),
+  element_id: Type.String(),
+});
+
+type Payload = Static<typeof SchemaData>;
+
+export class ReceiveOnlineFile extends OneBotAction<Payload, unknown> {
+  override actionName = ActionName.ReceiveOnlineFile;
+  override payloadSchema = SchemaData;
+
+  async _handle (payload: Payload) {
+    // 默认下载路径
+    const uid = await this.core.apis.UserApi.getUidByUinV2(payload.user_id.toString());
+    if (!uid) throw new Error('User not found');
+
+    const peer = { chatType: ChatType.KCHATTYPEC2C, peerUid: uid };
+
+    return await this.core.apis.OnlineApi.receiveOnlineFileOrFolder(peer, payload.msg_id, payload.element_id);
+  }
+}