feat(erp): conditionally enable Playwright video recording on login

When recordVideo and videoDir are set in ErpConfig, pass Playwright's
recordVideo option to browser.newContext() so sessions are automatically
captured on context close.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/main/services/erp/erp-auth.ts

@@ -47,13 +47,23 @@ export class ErpAuthService {
 
     log.debug('浏览器已启动', { headless: this.config.headless ?? false })
 
-    const context = await browser.newContext({
+    const contextOptions: Parameters<typeof browser.newContext>[0] = {
       acceptDownloads: true,
       viewport: { width: 1920, height: 1080 },
       ignoreHTTPSErrors: true, // Ignore SSL certificate errors
       // Disable web security for internal VPN
       javaScriptEnabled: true
-    })
+    }
+
+    if (this.config.recordVideo && this.config.videoDir) {
+      contextOptions.recordVideo = {
+        dir: this.config.videoDir,
+        size: { width: 1920, height: 1080 }
+      }
+      log.info('Video recording enabled', { dir: this.config.videoDir })
+    }
+
+    const context = await browser.newContext(contextOptions)
 
     const page = await context.newPage()
     attachPageDiagnostics(page)