fix(plan/ui): correct screenshot extension and align bot ext_info guard with backend

admin-web/src/views/ChannelAccount.vue

@@ -289,6 +289,7 @@ function resetDrawerForm() {
 
 function parseBotExtInfo(extInfo: string | undefined): string {
   if (!extInfo) return ''
+  if (!extInfo.trim().startsWith('{')) return extInfo
   try {
     const parsed = JSON.parse(extInfo)
     if (parsed && typeof parsed === 'object' && parsed.webhook_url) {

docs/superpowers/plans/2026-07-15-send-routing-e2e-verification-plan.md

@@ -224,7 +224,7 @@ If binding fails with "账号渠道类型与会话不一致" or similar, check `
 - [ ] **Step 1: 进入消息测试页面**
 
 Navigate to `http://localhost:5177/message/test`.
-Take screenshot: `admin-web/screenshots/06-message-test.png`
+Take screenshot: `admin-web/screenshots/06-message-test.jpeg`
 
 - [ ] **Step 2: 选择内部群目标**