[golang] fixed golang api client design mistakes

golang/pkg/api/agents.go

@@ -1,5 +1,11 @@
 package api
 
+import (
+	"encoding/json"
+	"fmt"
+	"net/url"
+)
+
 type AgentMessage struct {
 	AccountID       string `json:"accountId"`
 	Credits         int    `json:"credits"`
@@ -9,6 +15,18 @@ type AgentMessage struct {
 	Symbol          string `json:"symbol"`
 }
 
-func (c *Client) MyAgent() (APIMessage[AgentMessage, any], error) {
-	return Send[AgentMessage](c, "GET", "/my/agent", nil)
+func (c *Client) MyAgent() (*AgentMessage, error) {
+	uriRef := url.URL{Path: "my/agent"}
+	msg, err := c.Send("GET", &uriRef, nil)
+	if err != nil {
+		return nil, err
+	}
+	if msg.Error != nil {
+		return nil, msg.Error
+	}
+	var response AgentMessage
+	if err := json.Unmarshal(msg.Data, &response); err != nil {
+		return nil, fmt.Errorf("failed to unmarshal agent data: %w", err)
+	}
+	return &response, nil
 }