feat: MetonaAI Desktop 初始项目

- Electron + React + TypeScript 架构
- 三栏布局: Sidebar | ChatPanel | DetailPanel
- 9 个内置工具 (文件系统/网络/记忆/命令)
- SQLite 持久化 (better-sqlite3)
- MUI 暗色/亮色主题系统
- Agent Loop ReAct 状态机引擎
- DeepSeek / Agnes AI / Ollama Provider 适配器
- MCP 协议集成
- 系统托盘 + 全局快捷键
- Tailwind CSS v4 + Tailwind Merge
- 修复: Sidebar 缺失 TextField 导入导致黑屏

electron.vite.config.ts

@@ -0,0 +1,41 @@
+import { defineConfig, externalizeDepsPlugin } from 'electron-vite';
+import react from '@vitejs/plugin-react';
+import tailwindcss from '@tailwindcss/vite';
+import { resolve } from 'path';
+
+export default defineConfig({
+  main: {
+    plugins: [externalizeDepsPlugin()],
+    build: {
+      outDir: 'dist-electron/main',
+      rollupOptions: {
+        input: { main: resolve(__dirname, 'electron/main.ts') },
+      },
+    },
+  },
+  preload: {
+    plugins: [externalizeDepsPlugin()],
+    build: {
+      outDir: 'dist-electron/preload',
+      rollupOptions: {
+        input: { preload: resolve(__dirname, 'electron/preload.ts') },
+      },
+    },
+  },
+  renderer: {
+    root: '.',
+    plugins: [react(), tailwindcss()],
+    resolve: {
+      alias: {
+        '@renderer': resolve(__dirname, 'src'),
+        '@shared': resolve(__dirname, 'electron/harness/types'),
+      },
+    },
+    build: {
+      outDir: 'dist',
+      rollupOptions: {
+        input: { main: resolve(__dirname, 'index.html') },
+      },
+    },
+  },
+});