feat: 迁入 MiGu.Server、平台前端与车辆列表 reflection 回退

从 Simple-FR 拆出 Platform.Server 并重命名为 MiGu.Server；frontends 源码与构建脚本迁入本仓库。地图监控在 projection/cars 失败或为空时回退 reflection 车辆列表；Simple 仓库已移除旧 Platform.Server。

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

frontends/apps/simple-platform-vue/vite.config.ts

@@ -0,0 +1,36 @@
+import { defineConfig } from 'vite'
+import vue from '@vitejs/plugin-vue'
+import AutoImport from 'unplugin-auto-import/vite'
+import Components from 'unplugin-vue-components/vite'
+import { ElementPlusResolver } from 'unplugin-vue-components/resolvers'
+import { fileURLToPath, URL } from 'node:url'
+
+export default defineConfig({
+  base: '/',
+  plugins: [
+    vue(),
+    AutoImport({ resolvers: [ElementPlusResolver()] }),
+    Components({ resolvers: [ElementPlusResolver()] })
+  ],
+  resolve: {
+    alias: {
+      '@': fileURLToPath(new URL('./src', import.meta.url))
+    }
+  },
+  server: {
+    host: '0.0.0.0',
+    port: 5173,
+    proxy: {
+      '/api': {
+        target: 'http://127.0.0.1:8080',
+        changeOrigin: true
+      }
+    }
+  },
+  build: {
+    target: 'es2020',
+    outDir: 'dist',
+    sourcemap: false,
+    chunkSizeWarningLimit: 1500
+  }
+})