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-protocol/event/SnowCatProtocolEvent.ts

@@ -0,0 +1,66 @@
+import { SnowCatCore } from 'snowcat-core';
+
+// NapCat Protocol 事件基类
+export abstract class SnowCatProtocolEvent {
+  protected core: SnowCatCore;
+  public time: number;
+  public self_id: number;
+  public post_type: string;
+
+  constructor (core: SnowCatCore) {
+    this.core = core;
+    this.time = Math.floor(Date.now() / 1000);
+    this.self_id = parseInt(core.selfInfo.uin);
+    this.post_type = 'event';
+  }
+
+  abstract toJSON (): Record<string, unknown>;
+}
+
+// 消息事件基类
+export abstract class SnowCatProtocolMessageEvent extends SnowCatProtocolEvent {
+  public message_type: 'private' | 'group';
+  public message_id: number;
+  public user_id: number;
+
+  constructor (core: SnowCatCore, messageType: 'private' | 'group', messageId: number, userId: number) {
+    super(core);
+    this.post_type = 'message';
+    this.message_type = messageType;
+    this.message_id = messageId;
+    this.user_id = userId;
+  }
+}
+
+// 通知事件基类
+export abstract class SnowCatProtocolNoticeEvent extends SnowCatProtocolEvent {
+  public notice_type: string;
+
+  constructor (core: SnowCatCore, noticeType: string) {
+    super(core);
+    this.post_type = 'notice';
+    this.notice_type = noticeType;
+  }
+}
+
+// 请求事件基类
+export abstract class SnowCatProtocolRequestEvent extends SnowCatProtocolEvent {
+  public request_type: string;
+
+  constructor (core: SnowCatCore, requestType: string) {
+    super(core);
+    this.post_type = 'request';
+    this.request_type = requestType;
+  }
+}
+
+// 元事件基类
+export abstract class SnowCatProtocolMetaEvent extends SnowCatProtocolEvent {
+  public meta_event_type: string;
+
+  constructor (core: SnowCatCore, metaEventType: string) {
+    super(core);
+    this.post_type = 'meta_event';
+    this.meta_event_type = metaEventType;
+  }
+}

packages/snowcat-protocol/event/index.ts

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+export * from './SnowCatProtocolEvent';