Init V4 community edition (#2265)

* Init V4 community edition

* Init V4 community edition

ent/schema/group.go

@@ -0,0 +1,45 @@
+package schema
+
+import (
+	"entgo.io/ent"
+	"entgo.io/ent/schema/edge"
+	"entgo.io/ent/schema/field"
+	"github.com/cloudreve/Cloudreve/v4/inventory/types"
+	"github.com/cloudreve/Cloudreve/v4/pkg/boolset"
+)
+
+// Group holds the schema definition for the Group entity.
+type Group struct {
+	ent.Schema
+}
+
+func (Group) Fields() []ent.Field {
+	return []ent.Field{
+		field.String("name"),
+		field.Int64("max_storage").
+			Optional(),
+		field.Int("speed_limit").
+			Optional(),
+		field.Bytes("permissions").GoType(&boolset.BooleanSet{}),
+		field.JSON("settings", &types.GroupSetting{}).
+			Default(&types.GroupSetting{}).
+			Optional(),
+		field.Int("storage_policy_id").Optional(),
+	}
+}
+
+func (Group) Mixin() []ent.Mixin {
+	return []ent.Mixin{
+		CommonMixin{},
+	}
+}
+
+func (Group) Edges() []ent.Edge {
+	return []ent.Edge{
+		edge.To("users", User.Type),
+		edge.From("storage_policies", StoragePolicy.Type).
+			Ref("groups").
+			Field("storage_policy_id").
+			Unique(),
+	}
+}