feat: 微服务架构拆分和前后端优化

后端:
- 拆分出 agent_service, runtime_service, trading_service, news_service
- Gateway 模块化拆分 (gateway_*.py)
- 添加 domains/ 领域层
- 新增 control_client, runtime_client
- 更新 start-dev.sh 支持 split 服务模式

前端:
- 完善 API 服务层 (newsApi, tradingApi)
- 更新 vite.config.js
- Explain 组件优化

测试:
- 添加多个服务 app 测试

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/vite.config.js

@@ -18,6 +18,83 @@ export default defineConfig({
     }
   },
   plugins: [react(), tsconfigPaths(),tailwindcss()],
+  build: {
+    rollupOptions: {
+      output: {
+        manualChunks(id) {
+          if (!id.includes("node_modules")) {
+            return;
+          }
+
+          if (
+            id.includes("/react/") ||
+            id.includes("/react-dom/") ||
+            id.includes("/scheduler/")
+          ) {
+            return "react-core";
+          }
+
+          if (
+            id.includes("/three/") ||
+            id.includes("/@react-three/") ||
+            id.includes("/meshline/") ||
+            id.includes("/troika-")
+          ) {
+            return "three-stack";
+          }
+
+          if (
+            id.includes("/recharts/") ||
+            id.includes("/d3-") ||
+            id.includes("/victory-")
+          ) {
+            return "charts";
+          }
+
+          if (
+            id.includes("/react-markdown/") ||
+            id.includes("/remark-gfm/") ||
+            id.includes("/remark-") ||
+            id.includes("/mdast-") ||
+            id.includes("/micromark") ||
+            id.includes("/unified/") ||
+            id.includes("/hast-") ||
+            id.includes("/vfile/")
+          ) {
+            return "markdown";
+          }
+
+          if (
+            id.includes("/framer-motion/") ||
+            id.includes("/motion-dom/") ||
+            id.includes("/motion-utils/")
+          ) {
+            return "motion";
+          }
+
+          if (
+            id.includes("/@radix-ui/") ||
+            id.includes("/lucide-react/") ||
+            id.includes("/class-variance-authority/") ||
+            id.includes("/clsx/") ||
+            id.includes("/tailwind-merge/")
+          ) {
+            return "ui-kit";
+          }
+
+          if (
+            id.includes("/jszip/") ||
+            id.includes("/pako/") ||
+            id.includes("/fflate/")
+          ) {
+            return "zip-utils";
+          }
+
+          return "vendor";
+        }
+      }
+    }
+  },
   test: {
     environment: "jsdom"
   },