feat: add websocket writer and error handling utilities

internal/net/gphttp/server/error.go

@@ -0,0 +1,18 @@
+package server
+
+import (
+	"context"
+	"errors"
+	"net/http"
+
+	"github.com/rs/zerolog"
+)
+
+func HandleError(logger *zerolog.Logger, err error, msg string) {
+	switch {
+	case err == nil, errors.Is(err, http.ErrServerClosed), errors.Is(err, context.Canceled):
+		return
+	default:
+		logger.Fatal().Err(err).Msg(msg)
+	}
+}