refactor: 将多个 fmt.Println 日志替换为 log.Printf，以统一日志输出格式并提升可读性

service/beatleader/gen_picture.go

@@ -2,6 +2,7 @@ package beatleader
 
 import (
 	"fmt"
+	"log"
 
 	"git.lxtend.com/qqbot/util"
 )
@@ -16,7 +17,7 @@ func GetBLPicture(qqId string) (outputImgName string) {
 	outputImgPath := util.GenTempFilePath(fmt.Sprintf("beatleader_%s.png", blId))
 	outputImgName = fmt.Sprintf("beatleader_%s.png", blId)
 	if err := util.ScreenshotURL(url, outputImgPath, 1420, 2280, 70, 50, 160, 140, "chartjs"); err != nil {
-		fmt.Println(err)
+		log.Printf("ScreenshotURL error: %v\n", err)
 		return ""
 	}
 

service/exec/exec.go

@@ -85,7 +85,7 @@ func (dc *dockerContainer) CreateAndStartContainer() error {
 	}
 	// 如果容器已经存在，则跳过创建
 	if dc.ContainerID != "" {
-		fmt.Println("Container already exists, skipping creation.")
+		log.Printf("Container already exists, skipping creation.")
 		return nil
 	}
 
@@ -128,7 +128,7 @@ func (dc *dockerContainer) CreateAndStartContainer() error {
 		return err
 	}
 
-	fmt.Println("Container created and started, waiting for commands...")
+	log.Printf("Container created and started, waiting for commands...")
 	return nil
 }
 
@@ -218,7 +218,7 @@ func (dc *dockerContainer) RestartAndCleanContainer() error {
 		return err
 	}
 
-	fmt.Println("Container restarted and cleaned.")
+	log.Printf("Container restarted and cleaned.")
 	return nil
 }
 
@@ -243,6 +243,6 @@ func (dc *dockerContainer) RemoveContainer() error {
 		return err
 	}
 
-	fmt.Println("Container removed.")
+	log.Printf("Container removed.")
 	return nil
 }

service/scoresaber/gen_picture.go

@@ -2,6 +2,7 @@ package scoresaber
 
 import (
 	"fmt"
+	"log"
 
 	"git.lxtend.com/qqbot/util"
 )
@@ -16,7 +17,7 @@ func GetSSPicture(qqId string) (outputImgName string) {
 	outputImgPath := util.GenTempFilePath(fmt.Sprintf("scoresaber_%s.png", ssId))
 	outputImgName = fmt.Sprintf("scoresaber_%s.png", ssId)
 	if err := util.ScreenshotURL(url, outputImgPath, 1420, 2080, 50, 400, 150, 150, ""); err != nil {
-		fmt.Println(err)
+		log.Printf("ScreenshotURL error: %v\n", err)
 		return ""
 	}