feat: replace iot adapter with mqtt command pipeline

backend/api/internal/config/config.go

@@ -66,6 +66,12 @@ type PaymentConfig struct {
 	Wechat               WechatPayConfig `yaml:"Wechat"`
 }
 
+// IoTConfig 保存 API、Worker 与 IoT Client 间的内部认证和地址。
+type IoTConfig struct {
+	InternalServiceToken string `yaml:"InternalServiceToken"`
+	ClientBaseURL        string `yaml:"ClientBaseURL"`
+}
+
 // SrvConfig 与仓库现有进程的配置结构保持一致。
 type SrvConfig struct {
 	conf.Base `yaml:",inline"`
@@ -75,6 +81,7 @@ type SrvConfig struct {
 	Global    GlobalConfig            `yaml:"Global"`
 	Wallet    WalletConfig            `yaml:"-"`
 	Payment   PaymentConfig           `yaml:"Payment"`
+	IoT       IoTConfig               `yaml:"IoT"`
 }
 
 // New 初始化 BSM 配置并校验服务监听地址。
@@ -103,6 +110,9 @@ func New(srvKey string) {
 	if Spec.Payment.ExpireMinutes <= 0 || Spec.Payment.RefundWindowDays <= 0 {
 		panic("Payment expiration and refund window must be greater than zero")
 	}
+	if len(strings.TrimSpace(Spec.IoT.InternalServiceToken)) < 16 || !strings.HasPrefix(Spec.IoT.ClientBaseURL, "http") {
+		panic("IoT internal token and client base URL are required")
+	}
 	registerURL, err := url.ParseRequestURI(Spec.Global.UserRegisterURL)
 	if err != nil || (registerURL.Scheme != "http" && registerURL.Scheme != "https") || registerURL.Host == "" {
 		panic("Global.UserRegisterURL must be a valid HTTP or HTTPS URL")