初始提交：姜十三论坛 Jiang13 Forum

轻量自用论坛，Go 单二进制 + React SPA 内嵌 + SQLite。

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/vite.config.ts

@@ -0,0 +1,46 @@
+import path from 'path';
+import { defineConfig } from 'vite';
+import react from '@vitejs/plugin-react';
+
+// 与 Go 后端默认端口一致，可通过 VITE_API_PORT 覆盖
+const apiPort = process.env.VITE_API_PORT || '3000';
+const apiTarget = `http://localhost:${apiPort}`;
+
+export default defineConfig({
+  plugins: [react()],
+  resolve: {
+    alias: {
+      '@': path.resolve(__dirname, './src'),
+    },
+  },
+  base: '/',
+  build: {
+    outDir: '../embed_static/static/spa',
+    emptyOutDir: true,
+    rollupOptions: {
+      output: {
+        manualChunks(id) {
+          if (!id.includes('node_modules')) return;
+          if (id.includes('marked') || id.includes('dompurify')) return 'markdown-vendor';
+          if (id.includes('@tanstack/react-virtual')) return 'virtual-vendor';
+          if (id.includes('@radix-ui') || id.includes('lucide-react')) return 'ui-vendor';
+          if (
+            id.includes('react-dom')
+            || id.includes('react-router')
+            || /[/\\]node_modules[/\\]react[/\\]/.test(id)
+          ) {
+            return 'react-vendor';
+          }
+        },
+      },
+    },
+  },
+  server: {
+    port: 5173,
+    strictPort: true,
+    proxy: {
+      '/api': apiTarget,
+      '/uploads': apiTarget,
+    },
+  },
+});