chore: establish YCode replication baseline and TODO

electron.vite.config.ts

@@ -0,0 +1,55 @@
+import { resolve } from 'node:path'
+import { defineConfig, externalizeDepsPlugin } from 'electron-vite'
+import react from '@vitejs/plugin-react'
+
+const root = process.cwd()
+
+/**
+ * electron 位于 devDependencies，externalizeDepsPlugin 只处理 dependencies，
+ * 因此必须显式 external，否则 electron 的 Node 入口会被内联进主进程产物。
+ */
+// node-pty resolves its shipped native/prebuild resources relative to its own package.
+// Preserve that package boundary instead of moving its loader into out/main.
+const builtinsExternal = ['electron', 'node-pty']
+
+export default defineConfig({
+  main: {
+    plugins: [externalizeDepsPlugin()],
+    build: {
+      rollupOptions: {
+        input: resolve(root, 'src/main/index.ts'),
+        external: builtinsExternal
+      }
+    },
+    resolve: {
+      alias: { '@shared': resolve(root, 'src/shared') }
+    }
+  },
+  preload: {
+    plugins: [externalizeDepsPlugin()],
+    build: {
+      rollupOptions: {
+        input: resolve(root, 'src/preload/index.ts'),
+        external: builtinsExternal,
+        // sandbox: true 的 preload 必须是 CommonJS，ESM preload 只能配 sandbox: false
+        output: { format: 'cjs', entryFileNames: 'index.cjs' }
+      }
+    },
+    resolve: {
+      alias: { '@shared': resolve(root, 'src/shared') }
+    }
+  },
+  renderer: {
+    root: resolve(root, 'src/renderer'),
+    plugins: [react()],
+    resolve: {
+      alias: {
+        '@renderer': resolve(root, 'src/renderer/src'),
+        '@shared': resolve(root, 'src/shared')
+      }
+    },
+    build: {
+      rollupOptions: { input: resolve(root, 'src/renderer/index.html') }
+    }
+  }
+})