feat: 添加凭据测试未发现弱密码的提示

- credential_tester.go: 失败时设置 Type=ResultTypeCredential
- scanner.go: 根据结果类型在 error 级别输出'未发现弱密码'提示
- 新增 i18n 翻译 brute_no_weak_pass

使用 -log all 或 -log error 可看到此提示

common/i18n/locales/en.yaml

@@ -309,6 +309,8 @@ plugin_panic:
   other: "Plugin {{.Arg1}} panic while scanning {{.Arg2}}:{{.Arg3}}: {{.Arg4}}"
 plugin_scan_error:
   other: "Plugin scan error {{.Arg1}}:{{.Arg2}} - {{.Arg3}}"
+brute_no_weak_pass:
+  other: "{{.Arg1}}:{{.Arg2}} {{.Arg3}} no weak password found"
 
 # ========================= Port Scan Messages =========================
 invalid_port:

common/i18n/locales/zh.yaml

@@ -309,6 +309,8 @@ plugin_panic:
   other: "插件 {{.Arg1}} 扫描 {{.Arg2}}:{{.Arg3}} 时panic: {{.Arg4}}"
 plugin_scan_error:
   other: "插件扫描错误 {{.Arg1}}:{{.Arg2}} - {{.Arg3}}"
+brute_no_weak_pass:
+  other: "{{.Arg1}}:{{.Arg2}} {{.Arg3}} 未发现弱密码"
 
 # ========================= 端口扫描消息 =========================
 invalid_port:

core/scanner.go

@@ -212,11 +212,15 @@ func executeScanTask(config *common.Config, state *common.State, pluginName stri
 		if plugin != nil {
 			result := plugin.Scan(context.Background(), &target, config, state)
 			if result != nil {
-				if result.Error != nil {
-					common.LogError(i18n.Tr("plugin_scan_error", target.Host, target.Port, result.Error))
-				} else if result.Success {
+				if result.Success {
 					// 保存成功的扫描结果到文件
 					savePluginResult(&target, pluginName, result)
+				} else if result.Type == plugins.ResultTypeCredential {
+					// 凭据测试完成但未发现弱密码，在error级别输出提示
+					common.LogError(i18n.Tr("brute_no_weak_pass", target.Host, target.Port, pluginName))
+				} else if result.Error != nil {
+					// 其他类型的错误
+					common.LogError(i18n.Tr("plugin_scan_error", target.Host, target.Port, result.Error))
 				}
 			}
 		}

plugins/services/credential_tester.go

@@ -188,6 +188,7 @@ func TestCredentialsConcurrently(
 	}
 
 	return &ScanResult{
+		Type:    plugins.ResultTypeCredential, // 标记这是凭据测试结果
 		Success: false,
 		Service: serviceName,
 		Error:   fmt.Errorf("未发现弱密码"),