fix: 游戏创建与打手详情接口未返回数据

AddGamesResp 加 Games 字段，创建后查询回填。Game.Id 加 optional
避免请求解析时要求传 id。getPlayerLogic 初始化 resp 避免 copier
写入 nil 指针。补跑 ent go generate 确保 userfollows schema 与
生成代码一致。

app/users/rpc/internal/models/runtime.go

@@ -16,7 +16,9 @@ import (
 func init() {
 	userfollowsFields := schema.UserFollows{}.Fields()
 	_ = userfollowsFields
+	// userfollowsDescCreatedAt is the schema descriptor for created_at field.
 	userfollowsDescCreatedAt := userfollowsFields[3].Descriptor()
+	// userfollows.DefaultCreatedAt holds the default value on creation for the created_at field.
 	userfollows.DefaultCreatedAt = userfollowsDescCreatedAt.Default.(func() time.Time)
 	userpreferencesFields := schema.UserPreferences{}.Fields()
 	_ = userpreferencesFields