clean: remove deprecated utils/ package

- Remove all 5 files from utils/ (serial.go, socket.go, pulsar.go,
  sqlite.go, telegram.go)
- cmd/root.go: remove utils import and all utils. references
- cmd/test.go: rewrite to use serial, storage, transport packages directly
  with proper error logging via zap

cmd/test.go

@@ -17,7 +17,10 @@ package cmd
 
 import (
 	"github.com/spf13/cobra"
-	"it2000.com.cn/tele-recv/utils"
+	"go.uber.org/zap"
+	"it2000.com.cn/tele-recv/serial"
+	"it2000.com.cn/tele-recv/storage"
+	"it2000.com.cn/tele-recv/transport"
 )
 
 // testCmd represents the test command
@@ -34,17 +37,35 @@ Test load sqlite database and init table`,
 
 func test() {
 	logger.Info("Testing environment")
-	_ = utils.OpenPort(device, baudrate)
 
-	err := utils.InitDb(dbFile, dbInit)
+	// Test serial port
+	port, err := serial.Open(device, baudrate)
 	if err != nil {
-		println("create database error ", err)
+		logger.Warn("serial port open failed (expected if no device)", zap.Error(err))
+	} else {
+		port.Close()
+		logger.Info("serial port ok")
 	}
 
-	utils.CreateProducer(pulsarUrl, topic, name)
-	utils.ClosePulsar()
+	// Test SQLite
+	store, err := storage.New(dbFile, dbInit)
+	if err != nil {
+		logger.Error("database init failed", zap.Error(err))
+	} else {
+		logger.Info("database ok")
+		store.Close()
+	}
+
+	// Test Pulsar
+	sender, err := transport.NewPulsarSender(pulsarUrl, topic, name)
+	if err != nil {
+		logger.Warn("pulsar connection failed (expected if no broker)", zap.Error(err))
+	} else {
+		logger.Info("pulsar ok")
+		sender.Close()
+	}
 }
 
 func init() {
 	rootCmd.AddCommand(testCmd)
-}
+}