wastedassign 7→0：删除 7 处死初始化（snapshot.go 三连、push 三件套 content、format.go numStr），改 var 声明，零行为变化。

Result: {"status":"keep","total_issues":38,"golint_canonicalheader":0,"golint_errname":1,"golint_errorlint":12,"golint_forcetypeassert":3,"golint_gosec":0,"golint_intrange":3,"golint_modernize":5,"golint_nilnil":3,"golint_perfsprint":0,"golint_prealloc":3,"golint_recvcheck":7,"golint_usestdlibvars":0,"golint_wastedassign":0,"golint_total":37,"eslint_problems":1,"eslint_errors":0,"eslint_warnings":1,"tsc_errors":0,"measure_s":47}

pkg/push/email.go

@@ -41,7 +41,7 @@ func (p *EmailPusher) Send(ctx context.Context, cfg Config, target string, body
 		title = t
 	}
 
-	content := ""
+	var content string
 	if c, ok := body["content"].(string); ok && c != "" {
 		content = c
 	} else {

pkg/push/lark.go

@@ -160,7 +160,7 @@ func (p *LarkPusher) Send(ctx context.Context, cfg Config, _ string, body map[st
 			title = t
 		}
 
-		content := ""
+		var content string
 		if c, ok := body["content"].(string); ok && c != "" {
 			content = c
 		} else {

pkg/push/telegram.go

@@ -60,7 +60,7 @@ func (p *TelegramPusher) Send(ctx context.Context, cfg Config, target string, bo
 	if t, ok := body["title"].(string); ok && t != "" {
 		title = t
 	}
-	content := ""
+	var content string
 	if c, ok := body["content"].(string); ok && c != "" {
 		content = c
 	} else {

pkg/util/format.go

@@ -22,7 +22,7 @@ const (
 
 // Bytes2Size converts a byte count to a human-readable string with unit (B, KB, MB, GB).
 func Bytes2Size(num int64) string {
-	numStr := ""
+	var numStr string
 	unit := "B"
 	switch {
 	case num/int64(sizeGB) >= 1: