feat: 新增项目公共工具包，包含日志、错误、数据库、缓存、公共proto

backend/shared/logger/logger.go

@@ -0,0 +1,33 @@
+package logger
+
+import (
+	"os"
+
+	"github.com/rs/zerolog"
+)
+
+var log zerolog.Logger
+
+func init() {
+	log = zerolog.New(os.Stdout).With().Timestamp().Logger()
+}
+
+func Info() *zerolog.Event {
+	return log.Info()
+}
+
+func Error() *zerolog.Event {
+	return log.Error()
+}
+
+func Debug() *zerolog.Event {
+	return log.Debug()
+}
+
+func Warn() *zerolog.Event {
+	return log.Warn()
+}
+
+func Fatal() *zerolog.Event {
+	return log.Fatal()
+}