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/userfollows_create.go

@@ -38,6 +38,14 @@ func (_c *UserFollowsCreate) SetCreatedAt(v time.Time) *UserFollowsCreate {
 	return _c
 }
 
+// SetNillableCreatedAt sets the "created_at" field if the given value is not nil.
+func (_c *UserFollowsCreate) SetNillableCreatedAt(v *time.Time) *UserFollowsCreate {
+	if v != nil {
+		_c.SetCreatedAt(*v)
+	}
+	return _c
+}
+
 // SetID sets the "id" field.
 func (_c *UserFollowsCreate) SetID(v int64) *UserFollowsCreate {
 	_c.mutation.SetID(v)
@@ -77,6 +85,7 @@ func (_c *UserFollowsCreate) ExecX(ctx context.Context) {
 	}
 }
 
+// defaults sets the default values of the builder before save.
 func (_c *UserFollowsCreate) defaults() {
 	if _, ok := _c.mutation.CreatedAt(); !ok {
 		v := userfollows.DefaultCreatedAt()