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/packet/GetPacketStatus.ts

@@ -0,0 +1,48 @@
+import { OneBotAction } from '@/snowcat-onebot/action/OneBotAction';
+import { ActionName, BaseCheckResult } from '@/snowcat-onebot/action/router';
+import { Type } from '@sinclair/typebox';
+
+export abstract class GetPacketStatusDepends<PT, RT> extends OneBotAction<PT, RT> {
+  protected override async check (payload: PT): Promise<BaseCheckResult> {
+    const schemaResult = await super.check(payload);
+    if (!schemaResult.valid) return schemaResult;
+    if (!this.core.apis.PacketApi.packetStatus) {
+      return {
+        valid: false,
+        message: 'packetBackend不可用，请参照文档 https://napneko.github.io/config/advanced 和启动日志检查packetBackend状态或进行配置！' +
+          '错误堆栈信息：' + this.core.apis.PacketApi.clientLogStack,
+      };
+    }
+    return { valid: true };
+  }
+}
+
+export abstract class PacketSendAvailableDepends<PT, RT> extends OneBotAction<PT, RT> {
+  protected override async check (payload: PT): Promise<BaseCheckResult> {
+    const schemaResult = await super.check(payload);
+    if (!schemaResult.valid) return schemaResult;
+    if (!this.core.apis.PacketApi.available) {
+      return {
+        valid: false,
+        message: 'packetBackend发包能力不可用，请参照文档 https://napneko.github.io/config/advanced 和启动日志检查packetBackend状态或进行配置！' +
+          '错误堆栈信息：' + this.core.apis.PacketApi.clientLogStack,
+      };
+    }
+    return { valid: true };
+  }
+}
+
+export class GetPacketStatus extends GetPacketStatusDepends<void, void> {
+  override actionName = ActionName.GetPacketStatus;
+  override payloadSchema = Type.Object({});
+  override returnSchema = Type.Null();
+  override actionSummary = '获取Packet状态';
+  override actionDescription = '获取底层Packet服务的运行状态';
+  override actionTags = ['系统接口'];
+  override payloadExample = {};
+  override returnExample = null;
+
+  async _handle () {
+
+  }
+}