feat(dns): add CLI commands to reserve, show, delete cluster domain

internal/dns/api.go

@@ -0,0 +1,16 @@
+package dns
+
+type DomainResponse struct {
+	Name  string `json:"name,omitempty"`
+	Token string `json:"token,omitempty"`
+}
+
+type AuthErrorResponse struct {
+	Status  int           `json:"status,omitempty"`
+	Message string        `json:"msg,omitempty"`
+	Data    authErrorData `json:"data,omitempty"`
+}
+
+type authErrorData struct {
+	NoDomain bool `json:"noDomain,omitempty"`
+}