feat(syslog): 完成高吞吐可靠链路与统计存储优化

- 新增接入 WAL、检查点、背压恢复及可靠分发机制，完善 Kafka 幂等发布、分区、重试、DLT 和补偿流程
- 引入规则预编译、批内快照及 JetCache/Caffeine 两级缓存，支持缓存失效广播、影子对账和执行指标
- 升级 InfluxDB V2 原始日志模型，统一接收时间与 Point 时间，支持按日 measurement、UUID 分桶及 V1/V2 双读
- 重构达梦标准化批量写入与统计链路，支持事务内直写、增量投影、幂等控制、窗口水位和日期切换
- 完善告警处理、配置校验、运行监控及测试覆盖

haobang-security-dm/syslog-serve/src/main/java/com/netty/SyslogUdpChannelInitializer.java

@@ -1,6 +1,6 @@
 package com.netty;
 
-import com.haobang.config.AppConfig;
+import com.haobang.wal.SyslogWalService;
 import io.netty.channel.ChannelInitializer;
 import io.netty.channel.ChannelPipeline;
 import io.netty.channel.socket.DatagramChannel;
@@ -12,17 +12,23 @@ import java.nio.charset.Charset;
  * UDP 通道初始化器
  */
 public class SyslogUdpChannelInitializer extends ChannelInitializer<DatagramChannel> {
-    private static final Charset SYSLOG_CHARSET = AppConfig.getSyslogCharset();
+    private final Charset syslogCharset;
+    private final SyslogWalService walService;
+
+    SyslogUdpChannelInitializer(Charset syslogCharset, SyslogWalService walService) {
+        this.syslogCharset = java.util.Objects.requireNonNull(syslogCharset, "syslogCharset");
+        this.walService = java.util.Objects.requireNonNull(walService, "walService");
+    }
 
     @Override
     protected void initChannel(DatagramChannel ch) throws Exception {
         ChannelPipeline pipeline = ch.pipeline();
 
         // 添加字符串解码器和编码器（使用可配置的字符集）
-        pipeline.addLast("decoder", new StringDecoder(SYSLOG_CHARSET));
-        pipeline.addLast("encoder", new StringEncoder(SYSLOG_CHARSET));
+        pipeline.addLast("decoder", new StringDecoder(syslogCharset));
+        pipeline.addLast("encoder", new StringEncoder(syslogCharset));
 
         // 添加业务处理器
-        pipeline.addLast("handler", new SyslogMessageHandler());
+        pipeline.addLast("handler", new SyslogMessageHandler(syslogCharset, walService));
     }
-}
+}