feat: integrate zerolog for structured logging and replace fmt with logger

steamcache/logger/logger.go

@@ -0,0 +1,9 @@
+package logger
+
+import (
+	"os"
+
+	"github.com/rs/zerolog"
+)
+
+var Logger = zerolog.New(zerolog.ConsoleWriter{Out: os.Stderr}).With().Timestamp().Logger()