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/group/GetGroupNotice.ts

@@ -0,0 +1,73 @@
+import { WebApiGroupNoticeFeed } from 'snowcat-core';
+import { OneBotAction } from '@/snowcat-onebot/action/OneBotAction';
+import { ActionName } from '@/snowcat-onebot/action/router';
+import { Static, Type } from '@sinclair/typebox';
+import { GroupActionsExamples } from '../example/GroupActionsExamples';
+
+const PayloadSchema = Type.Object({
+  group_id: Type.String({ description: '群号' }),
+});
+
+type PayloadType = Static<typeof PayloadSchema>;
+
+const ReturnSchema = Type.Array(Type.Object({
+  sender_id: Type.Number({ description: '发送者QQ' }),
+  publish_time: Type.Number({ description: '发布时间' }),
+  notice_id: Type.String({ description: '公告ID' }),
+  message: Type.Object({
+    text: Type.String({ description: '文本内容' }),
+    image: Type.Array(Type.Any(), { description: '图片列表' }),
+    images: Type.Array(Type.Any(), { description: '图片列表' }),
+  }, { description: '公告内容' }),
+  settings: Type.Optional(Type.Any({ description: '设置项' })),
+  read_num: Type.Optional(Type.Number({ description: '阅读数' })),
+}), { description: '群公告列表' });
+
+type ReturnType = Static<typeof ReturnSchema>;
+
+export type ApiGroupNotice = ReturnType[number] & WebApiGroupNoticeFeed;
+
+export class GetGroupNotice extends OneBotAction<PayloadType, ReturnType> {
+  override actionName = ActionName.GoCQHTTP_GetGroupNotice;
+  override payloadSchema = PayloadSchema;
+  override returnSchema = ReturnSchema;
+  override actionSummary = '获取群公告';
+  override actionDescription = '获取指定群聊中的公告列表';
+  override actionTags = ['群组接口'];
+  override payloadExample = GroupActionsExamples.GetGroupNotice.payload;
+  override returnExample = GroupActionsExamples.GetGroupNotice.response;
+
+  async _handle (payload: PayloadType) {
+    const group = payload.group_id.toString();
+    const ret = await this.core.apis.WebApi.getGroupNotice(group);
+    if (!ret) {
+      throw new Error('获取公告失败');
+    }
+    const retNotices: ReturnType = [];
+    for (const key in ret.feeds) {
+      if (!ret.feeds[key]) {
+        continue;
+      }
+      const retApiNotice: WebApiGroupNoticeFeed = ret.feeds[key];
+      const image = retApiNotice.msg.pics?.map((pic) => {
+        return { id: pic.id, height: pic.h, width: pic.w };
+      }) || [];
+
+      const retNotice: ReturnType[number] = {
+        notice_id: retApiNotice.fid,
+        sender_id: retApiNotice.u,
+        publish_time: retApiNotice.pubt,
+        message: {
+          text: retApiNotice.msg.text,
+          image,
+          images: image,
+        },
+        settings: retApiNotice.settings,
+        read_num: retApiNotice.read_num,
+      };
+      retNotices.push(retNotice);
+    }
+
+    return retNotices;
+  }
+}