fix lint

internal/apps/relay/httpclient/client.go

@@ -1,3 +1,4 @@
+// Package httpclient provides an HTTP client for relay control-plane communication.
 package httpclient
 
 import (
@@ -8,21 +9,25 @@ import (
 	service "github.com/Rain-kl/Wavelet/pkg/protocol"
 )
 
+// APIResponse wraps a control-plane API response with an optional error message.
 type APIResponse[T any] struct {
 	ErrorMsg string `json:"error_msg"`
 	Data     T      `json:"data"`
 }
 
+// Client sends authenticated requests to the relay control-plane API.
 type Client struct {
 	base *edgehttp.Client
 }
 
+// New creates a relay HTTP client with the given base URL, token, and timeout.
 func New(baseURL string, token string, timeout time.Duration) *Client {
 	return &Client{
 		base: edgehttp.New(baseURL, token, timeout, "X-Agent-Token"),
 	}
 }
 
+// Heartbeat sends a relay heartbeat payload to the control plane.
 func (c *Client) Heartbeat(ctx context.Context, payload service.RelayHeartbeatPayload) (*service.RelayHeartbeatResponse, error) {
 	resp := APIResponse[service.RelayHeartbeatResponse]{}
 	if err := c.base.PostJSON(ctx, "/api/v1/relay/heartbeat", payload, &resp); err != nil {
@@ -34,6 +39,7 @@ func (c *Client) Heartbeat(ctx context.Context, payload service.RelayHeartbeatPa
 	return &resp.Data, nil
 }
 
+// SetToken updates the authentication token used for API requests.
 func (c *Client) SetToken(token string) {
 	c.base.SetToken(token)
-}
+}