feat(playwright): enable Playwright in production builds with custom browser path

Move Playwright from dev to production dependencies and implement robust browser
management for company deployment environment:

- Move playwright and playwright-core to dependencies
- Set PLAYWRIGHT_BROWSERS_PATH to user data directory before imports
- Add startup validation for Chromium browser with friendly error dialog
- Update build scripts to skip browser download during build process
- Configure electron-builder to unpack Playwright for native module access
- Add deployment documentation for browser setup in restricted environments

This allows manual browser installation in company environments where direct
downloads are blocked during build.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

BROWSER_VERSIONS.md

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+# Playwright 浏览器版本信息
+
+本文档记录 ERPAuto 项目使用的 Playwright 浏览器版本和部署信息。
+
+## 版本信息
+
+| 组件            | 版本号       |
+| --------------- | ------------ |
+| Playwright      | 1.58.2       |
+| Chromium        | 145.0.7632.6 |
+| Chromium 修订号 | 1208         |
+
+## 浏览器目录结构
+
+Playwright 将浏览器文件缓存在以下位置：
+
+### Windows 开发环境
+
+```
+C:\Users\<用户名>\AppData\Local\ms-playwright\
+└── chromium-1208/
+    └── chrome-win/
+        ├── chrome.exe
+        └── ...
+```
+
+### 目标部署环境
+
+```
+%APPDATA%\erpauto\ms-playwright\
+└── chromium-1208/
+    └── chrome-win/
+        ├── chrome.exe
+        └── ...
+```
+
+## 部署指南
+
+### 开发环境准备
+
+1. 安装 Playwright 1.58.2
+
+   ```bash
+   npm install playwright@1.58.2
+   ```
+
+2. 下载 Chromium 浏览器
+   ```bash
+   npx playwright install chromium
+   ```
+
+### 浏览器文件复制步骤
+
+1. **定位源目录**
+   - 开发机上找到 Playwright 浏览器缓存目录
+   - 默认路径：`C:\Users\<用户名>\AppData\Local\ms-playwright\chromium-1208`
+
+2. **复制浏览器文件**
+   - 将整个 `chromium-1208` 目录复制到部署目标
+   - 目标路径：`%APPDATA%\erpauto\ms-playwright\chromium-1208`
+
+3. **验证目录结构**
+   - 确认目标路径包含 `chrome-win/chrome.exe`
+   - 确保所有子文件完整复制
+
+### 环境变量配置
+
+如需要自定义浏览器路径，可设置环境变量：
+
+```bash
+# Windows
+set PLAYWRIGHT_BROWSERS_PATH=%APPDATA%\erpauto\ms-playwright
+```
+
+## 注意事项
+
+- 仅包含 Chromium 浏览器（Firefox 和 WebKit 不需要）
+- 浏览器文件体积约为 280MB
+- 部署时确保目标机器具有相同的 Playwright 版本（1.58.2）
+- 修订号必须匹配（1208），否则可能出现兼容性问题
+
+## 故障排查
+
+### 浏览器无法启动
+
+1. 检查修订号是否匹配（1208）
+2. 确认 `chrome-win/chrome.exe` 文件存在
+3. 验证 PLAYWRIGHT_BROWSERS_PATH 环境变量设置
+
+### 版本不匹配错误
+
+确保以下版本一致：
+
+- package.json 中的 Playwright 版本
+- 下载的 Chromium 修订号
+- browsers.json 中定义版本号