feat: update AppRouter with layout routes, add Docs and Blog pages

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

src/pages/BlogDetailPage.tsx

@@ -0,0 +1,15 @@
+import { useParams } from 'react-router-dom';
+import SEOHead from '../components/seo/SEOHead';
+
+export default function BlogDetailPage() {
+  const { slug } = useParams<{ slug: string }>();
+  return (
+    <>
+      <SEOHead title={slug ?? 'Blog'} description={`Blog post: ${slug}`} path={`/blog/${slug}`} type="article" />
+      <div className="max-w-4xl mx-auto py-16 px-6">
+        <h1 className="text-3xl font-bold text-gray-900 mb-4 capitalize">{slug?.replace(/-/g, ' ')}</h1>
+        <p className="text-gray-600">Content coming soon.</p>
+      </div>
+    </>
+  );
+}

src/pages/BlogListPage.tsx

@@ -0,0 +1,35 @@
+import { Link } from 'react-router-dom';
+import SEOHead from '../components/seo/SEOHead';
+import { useLanguage } from '../contexts/LanguageContext';
+
+const posts = [
+  {
+    slug: 'introducing-texpixel',
+    title: 'Introducing TexPixel',
+    titleZh: 'TexPixel 介绍',
+    description: 'Meet TexPixel — your AI-powered formula recognition tool',
+    descriptionZh: '认识 TexPixel — 你的 AI 公式识别工具',
+    date: '2026-03-25',
+  },
+];
+
+export default function BlogListPage() {
+  const { language } = useLanguage();
+  return (
+    <>
+      <SEOHead title="Blog" description="TexPixel blog — updates, tutorials, and insights" path="/blog" />
+      <div className="max-w-4xl mx-auto py-16 px-6">
+        <h1 className="text-3xl font-bold text-gray-900 mb-8">{language === 'en' ? 'Blog' : '博客'}</h1>
+        <div className="space-y-6">
+          {posts.map((post) => (
+            <Link key={post.slug} to={`/blog/${post.slug}`} className="block p-6 bg-gray-50 rounded-lg hover:bg-gray-100 transition-colors">
+              <div className="text-xs text-gray-400 mb-2">{post.date}</div>
+              <h2 className="text-lg font-semibold text-gray-900">{language === 'en' ? post.title : post.titleZh}</h2>
+              <p className="text-gray-600 mt-1 text-sm">{language === 'en' ? post.description : post.descriptionZh}</p>
+            </Link>
+          ))}
+        </div>
+      </div>
+    </>
+  );
+}

src/pages/DocDetailPage.tsx

@@ -0,0 +1,15 @@
+import { useParams } from 'react-router-dom';
+import SEOHead from '../components/seo/SEOHead';
+
+export default function DocDetailPage() {
+  const { slug } = useParams<{ slug: string }>();
+  return (
+    <>
+      <SEOHead title={slug ?? 'Doc'} description={`Documentation: ${slug}`} path={`/docs/${slug}`} />
+      <div className="max-w-4xl mx-auto py-16 px-6">
+        <h1 className="text-3xl font-bold text-gray-900 mb-4 capitalize">{slug?.replace(/-/g, ' ')}</h1>
+        <p className="text-gray-600">Content coming soon.</p>
+      </div>
+    </>
+  );
+}

src/pages/DocsListPage.tsx

@@ -0,0 +1,27 @@
+import { Link } from 'react-router-dom';
+import SEOHead from '../components/seo/SEOHead';
+import { useLanguage } from '../contexts/LanguageContext';
+
+const docs = [
+  { slug: 'getting-started', title: 'Getting Started', titleZh: '快速开始', description: 'Learn how to use TexPixel for formula recognition', descriptionZh: '了解如何使用 TexPixel 进行公式识别' },
+];
+
+export default function DocsListPage() {
+  const { language } = useLanguage();
+  return (
+    <>
+      <SEOHead title="Documentation" description="TexPixel documentation and guides" path="/docs" />
+      <div className="max-w-4xl mx-auto py-16 px-6">
+        <h1 className="text-3xl font-bold text-gray-900 mb-8">{language === 'en' ? 'Documentation' : '文档'}</h1>
+        <div className="space-y-4">
+          {docs.map((doc) => (
+            <Link key={doc.slug} to={`/docs/${doc.slug}`} className="block p-6 bg-gray-50 rounded-lg hover:bg-gray-100 transition-colors">
+              <h2 className="text-lg font-semibold text-gray-900">{language === 'en' ? doc.title : doc.titleZh}</h2>
+              <p className="text-gray-600 mt-1 text-sm">{language === 'en' ? doc.description : doc.descriptionZh}</p>
+            </Link>
+          ))}
+        </div>
+      </div>
+    </>
+  );
+}

src/routes/AppRouter.tsx

@@ -1,12 +1,40 @@
+import { lazy, Suspense } from 'react';
 import { Routes, Route } from 'react-router-dom';
-import App from '../App';
+import MarketingLayout from '../components/layout/MarketingLayout';
+import AppLayout from '../components/layout/AppLayout';
 import AuthCallbackPage from '../pages/AuthCallbackPage';
 
+const HomePage = lazy(() => import('../pages/HomePage'));
+const WorkspacePage = lazy(() => import('../pages/WorkspacePage'));
+const DocsListPage = lazy(() => import('../pages/DocsListPage'));
+const DocDetailPage = lazy(() => import('../pages/DocDetailPage'));
+const BlogListPage = lazy(() => import('../pages/BlogListPage'));
+const BlogDetailPage = lazy(() => import('../pages/BlogDetailPage'));
+
+function LoadingFallback() {
+  return (
+    <div className="min-h-screen flex items-center justify-center">
+      <div className="w-12 h-12 border-4 border-blue-600 border-t-transparent rounded-full animate-spin" />
+    </div>
+  );
+}
+
 export default function AppRouter() {
   return (
-    <Routes>
-      <Route path="/" element={<App />} />
-      <Route path="/auth/google/callback" element={<AuthCallbackPage />} />
-    </Routes>
+    <Suspense fallback={<LoadingFallback />}>
+      <Routes>
+        <Route element={<MarketingLayout />}>
+          <Route path="/" element={<HomePage />} />
+          <Route path="/docs" element={<DocsListPage />} />
+          <Route path="/docs/:slug" element={<DocDetailPage />} />
+          <Route path="/blog" element={<BlogListPage />} />
+          <Route path="/blog/:slug" element={<BlogDetailPage />} />
+        </Route>
+        <Route element={<AppLayout />}>
+          <Route path="/app" element={<WorkspacePage />} />
+        </Route>
+        <Route path="/auth/google/callback" element={<AuthCallbackPage />} />
+      </Routes>
+    </Suspense>
   );
 }