syntax = "proto3"; option go_package = ".;proto"; package proto; service AuditService { rpc RecordEvent(RecordEventRequest) returns (RecordEventResponse) {} } message RecordEventRequest { uint64 user_id = 1; string action = 2; string target = 3; string ip = 4; string user_agent = 5; } message RecordEventResponse { bool is_success = 1; }