feat(issue): add body field to IssueItem type and implement issue creation and completion routes

- Added 'body' field to IssueItem type in index.ts
- Created new routes for issue creation and completion in issue.ts
- Implemented validation for required parameters in issue creation and completion
- Added a new list route for issues in list.ts

agent/routes/index.ts

@@ -5,8 +5,8 @@ import './workspace/index.ts'
 import './call/index.ts'
 import './cnb-env/index.ts'
 import './knowledge/index.ts'
+import './issues/index.ts'
 
-import { isEqual } from 'es-toolkit'
 /**
  * 验证上下文中的 App ID 是否与指定的 App ID 匹配
  * @param {any} ctx - 上下文对象，可能包含 appId 属性