initialize Electron desktop app and remove unused files

vitest.config.ts

@@ -0,0 +1,45 @@
+import { defineConfig, type Plugin } from 'vitest/config'
+import vue from '@vitejs/plugin-vue'
+import { resolve } from 'path'
+
+/**
+ * Vite 的 SSR 变换用 `/^#!.*\n/` 识别 shebang，并把 import 声明提升到它前面。
+ * 这个正则只在 LF 工作区成立：`.` 不匹配 `\r`，所以 CRLF checkout（Windows 默认
+ * core.autocrlf=true）下 shebang 识别失败，import 被提升到 `#!/usr/bin/env node`
+ * 之前，shebang 落到文件中部，运行期直接抛 "Invalid or unexpected token"。
+ *
+ * 统一在 SSR 变换之前剥掉 shebang：它只对「直接执行」有意义，测试里不需要。
+ */
+function stripShebang(): Plugin {
+  return {
+    name: 'hermes:strip-shebang',
+    enforce: 'pre',
+    transform(code, id) {
+      if (!code.startsWith('#!')) return null
+      const newline = code.indexOf('\n')
+      return { code: newline === -1 ? '' : code.slice(newline + 1), map: null }
+    },
+  }
+}
+
+export default defineConfig({
+  plugins: [stripShebang(), vue()],
+  resolve: {
+    alias: {
+      '@': resolve(__dirname, 'packages/client/src'),
+      '/logo.png': resolve(__dirname, 'packages/client/public/logo.png'),
+    },
+  },
+  test: {
+    include: ['tests/**/*.test.ts'],
+    setupFiles: ['tests/setup.ts'],
+    coverage: {
+      // Without an explicit include, v8 coverage walks the whole project root.
+      // While the read-only reference_code/ checkout was present that pulled in
+      // ~570 of its files and diluted every percentage below.
+      provider: 'v8',
+      include: ['packages/*/src/**'],
+      exclude: ['**/vendor/**', '**/*.d.ts'],
+    },
+  },
+})