fix: 配置查询日志改为每10秒打印一次

internal/repository/config_repository.go

@@ -4,6 +4,8 @@ import (
 	"database/sql"
 	"fmt"
 	"log"
+	"sync"
+	"time"
 
 	"kfz-goods-pricing/internal/database"
 )
@@ -18,6 +20,11 @@ type KfzConfig struct {
 	QueryIndex           int
 }
 
+var (
+	lastConfigLog     time.Time
+	configLogMu       sync.Mutex
+)
+
 // GetKfzConfig 获取 kfz_config 配置（ID=1）
 // 无数据时返回 nil, nil
 func GetKfzConfig() (*KfzConfig, error) {
@@ -34,8 +41,15 @@ func GetKfzConfig() (*KfzConfig, error) {
 		log.Printf("[Repo/Config] 查询kfz_config失败: err=%v", err)
 		return nil, fmt.Errorf("查询kfz_config失败: %w", err)
 	}
+	configLogMu.Lock()
+	if time.Since(lastConfigLog) > 10*time.Second {
+		lastConfigLog = time.Now()
+		configLogMu.Unlock()
 		log.Printf("[Repo/Config] 查询成功: new_price=%.2f, placeholder_down_price=%.2f, min_shipping_fee=%.2f, min_price=%.2f, query_index=%d",
 			cfg.NewPrice, cfg.PlaceholderDownPrice, cfg.MinShippingFee, cfg.MinPrice, cfg.QueryIndex)
+	} else {
+		configLogMu.Unlock()
+	}
 	return &cfg, nil
 }