@startuml DB AppPool 数据模型
class AppPool {
  - id: str
  - name: str  
  - description: str
  - author: str
  - icon: str
  - links: List[str]
  - first_questions: List[str]
  - history_len: int
  - permission: Permission
  - flows: List[Flow]
  - favorites: List[str]
  - published: bool
  - created_at: datetime
}

class Permission {
  - type: str
  - users: List[str]
}

class AppData {
  - app_id: str
  - name: str
  - description: str
  - icon: str
  - links: List[str]
  - first_questions: List[str]
  - history_len: int
  - permission: Permission
  - workflows: List[str]
}

class AppCenterCardItem {
  - appId: str
  - icon: str
  - name: str
  - description: str 
  - author: str
  - favorited: bool
  - published: bool
}

AppPool --> Permission
AppData --> Permission
@enduml