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/event/meta/OB11BaseMetaEvent.ts

@@ -0,0 +1,6 @@
+import { EventType, OneBotEvent } from '@/snowcat-onebot/event/OneBotEvent';
+
+export abstract class OB11BaseMetaEvent extends OneBotEvent {
+  post_type = EventType.META;
+  abstract meta_event_type: string;
+}

packages/snowcat-onebot/event/meta/OB11HeartbeatEvent.ts

@@ -0,0 +1,22 @@
+import { OB11BaseMetaEvent } from './OB11BaseMetaEvent';
+import { SnowCatCore } from 'snowcat-core';
+
+interface HeartbeatStatus {
+  online: boolean | undefined,
+  good: boolean
+}
+
+export class OB11HeartbeatEvent extends OB11BaseMetaEvent {
+  meta_event_type = 'heartbeat';
+  status: HeartbeatStatus;
+  interval: number;
+
+  public constructor (core: SnowCatCore, interval: number, isOnline: boolean, isGood: boolean) {
+    super(core);
+    this.interval = interval;
+    this.status = {
+      online: isOnline,
+      good: isGood,
+    };
+  }
+}

packages/snowcat-onebot/event/meta/OB11LifeCycleEvent.ts

@@ -0,0 +1,18 @@
+import { OB11BaseMetaEvent } from './OB11BaseMetaEvent';
+import { SnowCatCore } from 'snowcat-core';
+
+export enum LifeCycleSubType {
+  ENABLE = 'enable',
+  DISABLE = 'disable',
+  CONNECT = 'connect',
+}
+
+export class OB11LifeCycleEvent extends OB11BaseMetaEvent {
+  meta_event_type = 'lifecycle';
+  sub_type: LifeCycleSubType;
+
+  public constructor (core: SnowCatCore, subType: LifeCycleSubType) {
+    super(core);
+    this.sub_type = subType;
+  }
+}

packages/snowcat-onebot/event/meta/index.ts

@@ -0,0 +1,3 @@
+export * from './OB11BaseMetaEvent';
+export * from './OB11HeartbeatEvent';
+export * from './OB11LifeCycleEvent';