目录条目的本地关系状态

stateDiagram-v2
[*] --> Observed
Observed --> SavedContact: save
Observed --> Ignored: ignore
SavedContact --> Observed: remove contact
Ignored --> Observed: unignore
Observed --> Removed: remove node
Removed --> Observed: observed again

人工验证和协议密钥验证是正交 flag，不是此单一状态机的一部分。