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/extends/GetAiCharacters.ts

@@ -0,0 +1,53 @@
+import { ActionName } from '@/snowcat-onebot/action/router';
+import { GetPacketStatusDepends } from '@/snowcat-onebot/action/packet/GetPacketStatus';
+import { Type, Static } from '@sinclair/typebox';
+
+import { ExtendsActionsExamples } from '../example/ExtendsActionsExamples';
+
+const PayloadSchema = Type.Object({
+  group_id: Type.String({ description: '群号' }),
+  chat_type: Type.Union([Type.Number(), Type.String()], { default: 1, description: '聊天类型' }),
+});
+
+type PayloadType = Static<typeof PayloadSchema>;
+
+const ReturnSchema = Type.Array(
+  Type.Object({
+    type: Type.String({ description: '角色类型' }),
+    characters: Type.Array(
+      Type.Object({
+        character_id: Type.String({ description: '角色ID' }),
+        character_name: Type.String({ description: '角色名称' }),
+        preview_url: Type.String({ description: '预览URL' }),
+      }),
+      { description: '角色列表' }
+    ),
+  }),
+  { description: 'AI角色列表' }
+);
+
+type ReturnType = Static<typeof ReturnSchema>;
+
+export class GetAiCharacters extends GetPacketStatusDepends<PayloadType, ReturnType> {
+  override actionName = ActionName.GetAiCharacters;
+  override payloadSchema = PayloadSchema;
+  override returnSchema = ReturnSchema;
+  override actionSummary = '获取AI角色列表';
+  override actionDescription = '获取群聊中的AI角色列表';
+  override actionTags = ['扩展接口'];
+  override payloadExample = ExtendsActionsExamples.GetAiCharacters.payload;
+  override returnExample = ExtendsActionsExamples.GetAiCharacters.response;
+
+  async _handle (payload: PayloadType) {
+    const chatTypeNum = Number(payload.chat_type);
+    const rawList = await this.core.apis.PacketApi.pkt.operation.FetchAiVoiceList(+payload.group_id, chatTypeNum);
+    return rawList?.map((item) => ({
+      type: item.category,
+      characters: item.voices.map((voice) => ({
+        character_id: voice.voiceId,
+        character_name: voice.voiceDisplayName,
+        preview_url: voice.voiceExampleUrl,
+      })),
+    })) ?? [];
+  }
+}