新增new context

common/context.go

@@ -0,0 +1,13 @@
+package common
+
+import (
+	"context"
+
+	context2 "git.ikuban.com/server/kratos-utils/http/context"
+)
+
+func NewContext(userID int64) context.Context {
+	ctx := context.Background()
+	ctx = context2.AppendToContext(ctx, "user_id", userID)
+	return ctx
+}