fix: 修复3个实测输出问题

1. 静默模式NDJSON banner截断至200字符
   Redis INFO响应~5KB导致JSONL单行过长，截断后加...后缀

2. CSV漏洞Type列补全
   ResultTypeVuln的fillDetail未设type字段，CSV Vulns列为空
   统一设为"vulnerability"

3. ICMP权限不足告警精简
   4行告警(listen失败/连接失败/权限不足/切换ping)合并为1行

common/output/stdout_writer.go

@@ -90,7 +90,11 @@ func (w *StdoutNDJSONWriter) flatten(r *ScanResult) *ndjsonRecord {
 
 	rec.Service = strVal(d, "service")
 	rec.Protocol = strVal(d, "protocol")
-	rec.Banner = strVal(d, "banner")
+	if banner := strVal(d, "banner"); len(banner) > 200 {
+		rec.Banner = banner[:200] + "..."
+	} else {
+		rec.Banner = banner
+	}
 	rec.Title = strVal(d, "title")
 	rec.URL = strVal(d, "url")
 	rec.Vulnerability = strVal(d, "vulnerability")

core/icmp.go

@@ -183,9 +183,6 @@ func probeWithICMP(hostslist []string, chanHosts chan string, aliveHosts *[]stri
 		return
 	}
 
-	common.LogError(i18n.Tr("icmp_listen_failed", err))
-	common.LogInfo(i18n.GetText("trying_no_listen_icmp"))
-
 	// 尝试无监听ICMP探测
 	conn2, err := net.DialTimeout("ip4:icmp", "127.0.0.1", 3*time.Second)
 	if err == nil {
@@ -194,8 +191,6 @@ func probeWithICMP(hostslist []string, chanHosts chan string, aliveHosts *[]stri
 		return
 	}
 
-	common.LogError(i18n.Tr("icmp_connect_failed", err))
-	common.LogError(i18n.GetText("insufficient_privileges"))
 	common.LogInfo(i18n.GetText("switching_to_ping"))
 
 	// 降级使用ping探测

core/scanner.go

@@ -398,13 +398,13 @@ var resultSerializers = map[plugins.ResultType]resultSerializer{
 			return r.Banner
 		},
 		fillDetail: func(r *plugins.Result, _ *common.HostInfo, d map[string]interface{}) {
-			// 优先使用VulInfo，为空则回退到Banner
 			vuln := r.VulInfo
 			if vuln == "" {
 				vuln = r.Banner
 			}
 			d["vulnerability"] = vuln
 			d["service"] = r.Service
+			d["type"] = "vulnerability"
 		},
 	},
 	plugins.ResultTypeWeb: {