修复凭证测试器计数器、消除panic、补齐i18n

- credential_tester: testCredentialWithRetry返回ErrorType，修复网络错误计数器永久不递增的bug
- scanner: os.Exit(1)改为return，defer Cleanup可正常执行
- probe_parser: 5处panic改为error返回，调用链透传到init()
- common库: parsers/initialize/network/session共17处硬编码中文改用i18n
- services插件: 18个文件115处硬编码中文改用i18n
- locale: 补齐service/parser/network相关~25个中英文键

plugins/services/activemq.go

@@ -218,7 +218,7 @@ func (p *ActiveMQPlugin) identifyService(ctx context.Context, info *common.HostI
 		return &ScanResult{
 			Success: false,
 			Service: "activemq",
-			Error:   fmt.Errorf("无法发送STOMP请求: %w", writeErr),
+			Error:   fmt.Errorf("STOMP request send failed: %w", writeErr),
 		}
 	}
 
@@ -229,7 +229,7 @@ func (p *ActiveMQPlugin) identifyService(ctx context.Context, info *common.HostI
 		return &ScanResult{
 			Success: false,
 			Service: "activemq",
-			Error:   fmt.Errorf("无法读取响应: %w", err),
+			Error:   fmt.Errorf("Failed to read response: %w", err),
 		}
 	}
 	if n == 0 {
@@ -267,7 +267,7 @@ func (p *ActiveMQPlugin) identifyService(ctx context.Context, info *common.HostI
 	return &ScanResult{
 		Success: false,
 		Service: "activemq",
-		Error:   fmt.Errorf("无法识别为ActiveMQ STOMP服务"),
+		Error:   fmt.Errorf(i18n.Tr("service_not_identified", "ActiveMQ STOMP")),
 	}
 }