Phone Protocol Core 到 App Facade

sequenceDiagram
actor P as Phone
participant B as BLE
participant C as Protocol Core
participant F as IPhoneAppFacade
participant A as App Services
P->>B: frame
B->>C: fixed slot
C->>F: operation
F->>A: bounded call
A-->>F: result
F-->>C: neutral result
C-->>P: native response