Init V4 community edition (#2265)

* Init V4 community edition

* Init V4 community edition

ent/entc.go

@@ -0,0 +1,29 @@
+//go:build ignore
+
+package main
+
+import (
+	"log"
+
+	"entgo.io/ent/entc"
+	"entgo.io/ent/entc/gen"
+)
+
+func main() {
+	if err := entc.Generate("./schema", &gen.Config{
+		Features: []gen.Feature{
+			gen.FeatureIntercept,
+			gen.FeatureSnapshot,
+			gen.FeatureUpsert,
+			gen.FeatureUpsert,
+			gen.FeatureExecQuery,
+		},
+		Templates: []*gen.Template{
+			gen.MustParse(gen.NewTemplate("edge_helper").ParseFiles("templates/edgehelper.tmpl")),
+			gen.MustParse(gen.NewTemplate("mutation_helper").ParseFiles("templates/mutationhelper.tmpl")),
+			gen.MustParse(gen.NewTemplate("create_helper").ParseFiles("templates/createhelper.tmpl")),
+		},
+	}); err != nil {
+		log.Fatal("running ent codegen:", err)
+	}
+}