feat(stock):增加股票搜索结果数量并优化搜索条件

- 将随机返回的股票数量从5-10支增加到5-20支
- 更新测试用例中的搜索关键词，提高筛选条件准确性
- 调整搜索逻辑以适应新的数据范围和质量要求

Author: ArvinLovegood

backend/agent/tools/choice_stock_by_indicators_tool.go

@@ -4,11 +4,12 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
+	"go-stock/backend/data"
+
 	"github.com/cloudwego/eino/components/tool"
 	"github.com/cloudwego/eino/schema"
 	"github.com/duke-git/lancet/v2/convertor"
 	"github.com/duke-git/lancet/v2/random"
-	"go-stock/backend/data"
 )
 
 // @Author spark
@@ -55,7 +56,7 @@ func (c ChoiceStockByIndicators) InvokableRun(ctx context.Context, argumentsInJS
 	}
 	content := "无符合条件的数据"
 	words := parms["words"].(string)
-	res := data.NewSearchStockApi(words).SearchStock(random.RandInt(5, 10))
+	res := data.NewSearchStockApi(words).SearchStock(random.RandInt(5, 20))
 	if convertor.ToString(res["code"]) == "100" {
 		resData := res["data"].(map[string]any)
 		result := resData["result"].(map[string]any)

backend/data/openai_api.go

@@ -1155,7 +1155,7 @@ func AskAiWithTools(o *OpenAi, err error, messages []map[string]interface{}, ch
 								}
 
 								content := "无符合条件的数据"
-								res := NewSearchStockApi(words).SearchStock(random.RandInt(5, 10))
+								res := NewSearchStockApi(words).SearchStock(random.RandInt(5, 20))
 								if convertor.ToString(res["code"]) == "100" {
 									resData := res["data"].(map[string]any)
 									result := resData["result"].(map[string]any)

backend/data/search_stock_api_test.go

@@ -12,7 +12,7 @@ import (
 func TestSearchStock(t *testing.T) {
 	db.Init("../../data/stock.db")
 
-	res := NewSearchStockApi("算力股;净利润连续3年增长").SearchStock(10)
+	res := NewSearchStockApi("量比大于2，基本面优秀，2025年三季报已披露，主力连续3日净流入，非创业板非科创板非ST").SearchStock(20)
 	logger.SugaredLogger.Infof("res:%+v", res)
 	data := res["data"].(map[string]any)
 	result := data["result"].(map[string]any)