Version: 0.9.75.dev.260505

后端：
1.收口阶段 6 agent 结构迁移，将 newAgent 内核与 agentsvc 编排层迁入 services/agent
- 切换 Agent 启动装配与 HTTP handler 直连 agent sv，移除旧 service agent bridge
- 补齐 Agent 对 memory、task、task-class、schedule 的 RPC 适配与契约字段
- 扩展 schedule、task、task-class RPC/contract 支撑 Agent 查询、写入与 provider 切流
- 更新迁移文档、README 与相关注释，明确 agent 当前切流点和剩余 memory 迁移面

backend/services/task/rpc/handler.go

@@ -38,10 +38,11 @@ func (h *Handler) AddTask(ctx context.Context, req *pb.JSONRequest) (*pb.JSONRes
 		return nil, grpcErrorFromServiceError(respond.WrongParamType)
 	}
 	data, err := h.svc.AddTask(ctx, &model.UserAddTaskRequest{
-		Title:             contractReq.Title,
-		PriorityGroup:     contractReq.PriorityGroup,
-		EstimatedSections: contractReq.EstimatedSections,
-		DeadlineAt:        contractReq.DeadlineAt,
+		Title:              contractReq.Title,
+		PriorityGroup:      contractReq.PriorityGroup,
+		EstimatedSections:  contractReq.EstimatedSections,
+		DeadlineAt:         contractReq.DeadlineAt,
+		UrgencyThresholdAt: contractReq.UrgencyThresholdAt,
 	}, contractReq.UserID)
 	return jsonResponse(data, err)
 }