refactor: remove empty services (#116)

* remove empty services

* remove old factory

* remove old static files

* cleanup more duplicate service code

* file/folder reorg

backend/internal/data/ent/schema/group_invitation_token.go

@@ -0,0 +1,42 @@
+package schema
+
+import (
+	"time"
+
+	"entgo.io/ent"
+	"entgo.io/ent/schema/edge"
+	"entgo.io/ent/schema/field"
+	"github.com/hay-kot/homebox/backend/internal/data/ent/schema/mixins"
+)
+
+// GroupInvitationToken holds the schema definition for the GroupInvitationToken entity.
+type GroupInvitationToken struct {
+	ent.Schema
+}
+
+func (GroupInvitationToken) Mixin() []ent.Mixin {
+	return []ent.Mixin{
+		mixins.BaseMixin{},
+	}
+}
+
+// Fields of the GroupInvitationToken.
+func (GroupInvitationToken) Fields() []ent.Field {
+	return []ent.Field{
+		field.Bytes("token").
+			Unique(),
+		field.Time("expires_at").
+			Default(func() time.Time { return time.Now().Add(time.Hour * 24 * 7) }),
+		field.Int("uses").
+			Default(0),
+	}
+}
+
+// Edges of the GroupInvitationToken.
+func (GroupInvitationToken) Edges() []ent.Edge {
+	return []ent.Edge{
+		edge.From("group", Group.Type).
+			Ref("invitation_tokens").
+			Unique(),
+	}
+}