feat: 初始化孕育无忧全栈项目基础代码结构

完成项目初始搭建，包含后端FastAPI+MongoDB服务、前端React+Vite项目的完整基础结构，添加各类配置文件与依赖清单，涵盖核心业务初始框架。

frontend/vite.config.ts

@@ -0,0 +1,39 @@
+import { defineConfig } from 'vite'
+import path from 'path'
+import tailwindcss from '@tailwindcss/vite'
+import react from '@vitejs/plugin-react'
+import basicSsl from '@vitejs/plugin-basic-ssl'
+
+export default defineConfig({
+  plugins: [
+    // The React and Tailwind plugins are both required for Make, even if
+    // Tailwind is not being actively used – do not remove them
+    react(),
+    tailwindcss(),
+    // basicSsl(), // disabled for cloudflare tunnel compatibility
+  ],
+  resolve: {
+    alias: {
+      // Alias @ to the src directory
+      '@': path.resolve(__dirname, './src'),
+    },
+  },
+
+  // File types to support raw imports. Never add .css, .tsx, or .ts files to this.
+  assetsInclude: ['**/*.svg', '**/*.csv'],
+
+  server: {
+    host: '0.0.0.0',
+    allowedHosts: ['.trycloudflare.com', '.loca.lt'],
+    proxy: {
+      '/api': {
+        target: 'http://localhost:8000',
+        changeOrigin: true,
+      },
+      '/uploads': {
+        target: 'http://localhost:8000',
+        changeOrigin: true,
+      },
+    },
+  },
+})