Feature heartbeat

[chenjiahui]

Proposed Changes:

add the Heartbeat function, you can simply add the following configuration to the loggie.yml configuration file:

Additional documentation:

heartbeat:  
  address: http://127.0.0.1:8000/api/heartbeat  
  interval: 10  
  nodeName: node-01

This configuration enables the Heartbeat feature, where:

• address specifies the endpoint where the heartbeat requests will be sent, in this case http://127.0.0.1:8000/api/heartbeat.
• interval defines the interval (in seconds) at which heartbeat messages are sent. In this example, it is set to 10 seconds.
• nodeName identifies the node sending the heartbeat, in this case named node-01.