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-core/packet/context/clientContext.ts

@@ -0,0 +1,83 @@
+import { NativePacketClient } from '@/snowcat-core/packet/client/nativeClient';
+import { OidbPacket } from '@/snowcat-core/packet/transformer/base';
+import { PacketLogger } from '@/snowcat-core/packet/context/loggerContext';
+import { NapCoreContext } from '@/snowcat-core/packet/context/napCoreContext';
+import { Napi2NativeLoader } from '@/snowcat-core/packet/handler/napi2nativeLoader';
+
+export class LogStack {
+  private stack: string[] = [];
+  private readonly logger: PacketLogger;
+
+  constructor (logger: PacketLogger) {
+    this.logger = logger;
+  }
+
+  push (msg: string) {
+    this.stack.push(msg);
+  }
+
+  pushLogInfo (msg: string) {
+    this.logger.info(msg);
+    this.stack.push(`${new Date().toISOString()} [INFO] ${msg}`);
+  }
+
+  pushLogWarn (msg: string) {
+    this.logger.warn(msg);
+    this.stack.push(`${new Date().toISOString()} [WARN] ${msg}`);
+  }
+
+  pushLogError (msg: string) {
+    this.logger.error(msg);
+    this.stack.push(`${new Date().toISOString()} [ERROR] ${msg}`);
+  }
+
+  clear () {
+    this.stack = [];
+  }
+
+  content () {
+    return this.stack.join('\n');
+  }
+}
+
+export class PacketClientContext {
+  private readonly napCore: NapCoreContext;
+  private readonly logger: PacketLogger;
+  private readonly logStack: LogStack;
+  private readonly napi2nativeLoader: Napi2NativeLoader;
+  private readonly _client: NativePacketClient;
+
+  constructor (napCore: NapCoreContext, logger: PacketLogger, napi2nativeLoader: Napi2NativeLoader) {
+    this.napCore = napCore;
+    this.logger = logger;
+    this.logStack = new LogStack(logger);
+    this.napi2nativeLoader = napi2nativeLoader;
+    this._client = this.newClient();
+  }
+
+  get available (): boolean {
+    return this._client.available;
+  }
+
+  get clientLogStack (): string {
+    return this._client.logStack.content();
+  }
+
+  async init (pid: number, recv: string, send: string): Promise<void> {
+    await this._client.init(pid, recv, send);
+  }
+
+  async sendOidbPacket<T extends boolean = false> (pkt: OidbPacket, rsp?: T, timeout?: number): Promise<T extends true ? Buffer : void> {
+    const raw = await this._client.sendOidbPacket(pkt, rsp, timeout);
+    return raw.data as T extends true ? Buffer : void;
+  }
+
+  private newClient (): NativePacketClient {
+    this.logger.info('使用 NativePacketClient 作为后端');
+    const client = new NativePacketClient(this.napCore, this.logger, this.logStack, this.napi2nativeLoader);
+    if (!client.check()) {
+      throw new Error('[Core] [Packet] NativePacketClient 不可用，NapCat.Packet将不会加载！');
+    }
+    return client;
+  }
+}