feat: set default slog

kod.go

@@ -542,5 +542,9 @@ func (k *Kod) newSlog(handler slog.Handler) *slog.Logger {
 
 	handler = kslog.NewLevelHandler(k.config.LogLevel)(handler)
 
-	return slog.New(handler)
+	logger := slog.New(handler)
+
+	slog.SetDefault(logger)
+
+	return logger
 }

tests/case1/case_log_file_test.go

@@ -23,7 +23,7 @@ func TestLogFile(t *testing.T) {
 		}).Len())
 		require.Equal(t, 0, observer.Clean().Len())
 		slog.Info("test")
-		require.Equal(t, 0, observer.Len())
+		require.Equal(t, 1, observer.Len())
 		os.Remove("./testapp.json")
 	}, kod.WithLogWrapper(log), kod.WithConfigFile("./kod-logfile.toml"))
 }