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-test/groupTodoTransformer.test.ts

@@ -0,0 +1,59 @@
+import { describe, expect, test, vi } from 'vitest';
+import { NapProtoMsg } from 'snowcat-protobuf';
+import { OidbSvcTrpcTcpBase } from '@/snowcat-core/packet/transformer/proto/oidb/OidbBase';
+import { OidbSvcTrpcTcp0XF90 } from '@/snowcat-core/packet/transformer/proto/oidb/Oidb.0xf90';
+import SetGroupTodo from '@/snowcat-core/packet/transformer/action/SetGroupTodo';
+import CompleteGroupTodo from '@/snowcat-core/packet/transformer/action/CompleteGroupTodo';
+import CancelGroupTodo from '@/snowcat-core/packet/transformer/action/CancelGroupTodo';
+
+vi.mock('@/snowcat-core/packet/transformer/base', () => ({
+  PacketTransformer: class PacketTransformer {
+    protected msgBuilder: unknown;
+
+    constructor () {
+      this.msgBuilder = undefined;
+    }
+  },
+  PacketBufBuilder: (str: Uint8Array) => Buffer.from(str),
+}));
+
+const decodePacket = (data: Buffer) => {
+  const base = new NapProtoMsg(OidbSvcTrpcTcpBase).decode(data);
+  const body = new NapProtoMsg(OidbSvcTrpcTcp0XF90).decode(base.body);
+  return { base, body };
+};
+
+describe('Group todo packet builder', () => {
+  test('builds OIDB 0xF90 subCommand 1 for set', () => {
+    const packet = SetGroupTodo.build(123456, '789');
+    const { base, body } = decodePacket(packet.data);
+
+    expect(packet.cmd).toBe('OidbSvcTrpcTcp.0xF90_1');
+    expect(base.command).toBe(0xF90);
+    expect(base.subCommand).toBe(1);
+    expect(body.groupUin).toBe(123456);
+    expect(body.msgSeq).toBe('789');
+  });
+
+  test('builds OIDB 0xF90 subCommand 2 for complete', () => {
+    const packet = CompleteGroupTodo.build(123456, '789');
+    const { base, body } = decodePacket(packet.data);
+
+    expect(packet.cmd).toBe('OidbSvcTrpcTcp.0xF90_2');
+    expect(base.command).toBe(0xF90);
+    expect(base.subCommand).toBe(2);
+    expect(body.groupUin).toBe(123456);
+    expect(body.msgSeq).toBe('789');
+  });
+
+  test('builds OIDB 0xF90 subCommand 3 for cancel', () => {
+    const packet = CancelGroupTodo.build(123456, '789');
+    const { base, body } = decodePacket(packet.data);
+
+    expect(packet.cmd).toBe('OidbSvcTrpcTcp.0xF90_3');
+    expect(base.command).toBe(0xF90);
+    expect(base.subCommand).toBe(3);
+    expect(body.groupUin).toBe(123456);
+    expect(body.msgSeq).toBe('789');
+  });
+});