feat: 基础设施加固 — 修复构建、数据保留、错误边界、bundle 拆分

- 修复 build script 引用已删除的 registerCheckers，恢复生产构建
- 生产入口添加 SIGINT/SIGTERM 优雅关闭（与 dev.ts 一致）
- 新增 runtime.retention 配置（默认 7d），ProbeStore.prune() 定时清理过期数据
- parseDuration 扩展支持 h/d 单位
- 新增前端 ErrorBoundary 组件，防止渲染错误白屏
- Vite codeSplitting.groups 拆分 vendor chunks（业务代码 1180KB → 47KB）
- 同步 delta specs 到主规范

src/web/components/ErrorBoundary.tsx

@@ -0,0 +1,38 @@
+import type { ErrorInfo, ReactNode } from "react";
+
+import { Component } from "react";
+import { Alert, Button, Space } from "tdesign-react";
+
+interface Props {
+  children: ReactNode;
+}
+
+interface State {
+  hasError: boolean;
+}
+
+export class ErrorBoundary extends Component<Props, State> {
+  state: State = { hasError: false };
+
+  static getDerivedStateFromError(): State {
+    return { hasError: true };
+  }
+
+  componentDidCatch(error: Error, info: ErrorInfo): void {
+    console.error("渲染错误:", error, info.componentStack);
+  }
+
+  render() {
+    if (this.state.hasError) {
+      return (
+        <Space align="center" className="error-boundary-fallback" direction="vertical" size="large">
+          <Alert message="页面渲染出现异常，请刷新重试" theme="error" title="页面出错" />
+          <Button onClick={() => window.location.reload()} theme="primary">
+            刷新页面
+          </Button>
+        </Space>
+      );
+    }
+    return this.props.children;
+  }
+}

src/web/main.tsx

@@ -4,6 +4,7 @@ import { StrictMode } from "react";
 import { createRoot } from "react-dom/client";
 
 import { App } from "./app";
+import { ErrorBoundary } from "./components/ErrorBoundary";
 import "tdesign-react/dist/reset.css";
 import "tdesign-react/dist/tdesign.min.css";
 
@@ -27,9 +28,11 @@ if (!rootElement) {
 
 createRoot(rootElement).render(
   <StrictMode>
-    <QueryClientProvider client={queryClient}>
-      <App />
-      <ReactQueryDevtools initialIsOpen={false} />
-    </QueryClientProvider>
+    <ErrorBoundary>
+      <QueryClientProvider client={queryClient}>
+        <App />
+        <ReactQueryDevtools initialIsOpen={false} />
+      </QueryClientProvider>
+    </ErrorBoundary>
   </StrictMode>,
 );

src/web/styles.css

@@ -156,3 +156,8 @@
 .summary-cards-row {
   margin-bottom: var(--td-comp-margin-xl);
 }
+
+.error-boundary-fallback {
+  padding-top: 20vh;
+  width: 100%;
+}