SnowCat 雪猫底层全源码：NapCat 4.18.28 底座 + SnowLuma 能力移植 + V8 通道适配 9.9.37

26 包 monorepo（TS 全源码）：
- snowcat-core: NT 内核 API 封装 + listener（含 9.9.37 六回调适配）+ Packet 发包
- snowcat-onebot: OneBot v11 全动作 + MCP Streamable HTTP 适配器 + 稳定线
- snowcat-webui-frontend/backend: 雪猫控制台（React+HeroUI）
- snowcat-shell: 单文件 bundle 出口（vite inlineDynamicImports）
- snowcat-native: napi2native / MoeHoo / ffmpeg / pty 运行时
- 56 项 SnowLuma 独门动作移植（qzone 全家桶/群相册/装扮/闪照/收藏）
- 工具件: 解包器/启动器/便携制作器/doctor

GitHub 关联已全量指向 DandanLLab/SnowCatQQ

packages/snowcat-onebot/action/file/flash/SendFlashMsg.ts

@@ -0,0 +1,50 @@
+import { OneBotAction } from '@/snowcat-onebot/action/OneBotAction';
+import { ActionName } from '@/snowcat-onebot/action/router';
+import { Static, Type } from '@sinclair/typebox';
+import { ChatType, Peer } from 'snowcat-core/types';
+
+export const SendFlashMsgPayloadSchema = Type.Object({
+  fileset_id: Type.String({ description: '文件集 ID' }),
+  user_id: Type.Optional(Type.String({ description: '用户 QQ' })),
+  group_id: Type.Optional(Type.String({ description: '群号' })),
+});
+
+export type SendFlashMsgPayload = Static<typeof SendFlashMsgPayloadSchema>;
+
+export class SendFlashMsg extends OneBotAction<SendFlashMsgPayload, any> {
+  override actionName = ActionName.SendFlashMsg;
+  override payloadSchema = SendFlashMsgPayloadSchema;
+  override returnSchema = Type.Any({ description: '发送结果' });
+  override actionSummary = '发送闪传消息';
+  override actionTags = ['文件扩展'];
+  override payloadExample = {
+    fileset_id: 'set_123',
+    user_id: '123456789',
+  };
+
+  override returnExample = {
+    message_id: 123456,
+  };
+
+  async _handle (payload: SendFlashMsgPayload) {
+    let peer: Peer;
+
+    if (payload.group_id) {
+      peer = { chatType: ChatType.KCHATTYPEGROUP, peerUid: payload.group_id.toString() };
+    } else if (payload.user_id) {
+      const uid = await this.core.apis.UserApi.getUidByUinV2(payload.user_id.toString());
+      if (!uid) throw new Error('User not found');
+
+      // 可能需要更严格的判断
+      const isBuddy = await this.core.apis.FriendApi.isBuddy(uid);
+      peer = {
+        chatType: isBuddy ? ChatType.KCHATTYPEC2C : ChatType.KCHATTYPETEMPC2CFROMGROUP,
+        peerUid: uid,
+      };
+    } else {
+      throw new Error('user_id or group_id is required');
+    }
+
+    return await this.core.apis.FlashApi.sendFlashMessage(payload.fileset_id, peer);
+  }
+}