Baseline source: ../../spec/13-事件与模块接口规范.md

Use:

1. <domain>.<object>
2. <domain>.<object>.<action>

Example domains:

1. net
2. mqtt
3. tcp
4. sms
5. gnss
6. wifi
7. sys

1. Include timestamp field (ts) where useful.
2. Keep keys short and stable.
3. Keep error payloads explicit: error, reason, when.

1. Add minimum interval for high-frequency events.
2. Debounce signal/health events to avoid log flooding.