feat: 实现Redis集成与Kafka消息处理优化

- 新增Redis集成模块，支持心跳写入与控制台日志队列
- 优化Kafka消费者实现，支持多实例与自动重连
- 改进消息处理器，支持批量处理与多层解码
- 更新数据库表结构，调整字段类型与约束
- 添加Redis与Kafka的配置项和环境变量支持
- 补充测试用例和文档说明

test/smoke.test.js

@@ -0,0 +1,27 @@
+import assert from 'node:assert/strict';
+import { HeartbeatProcessor } from '../src/processor/heartbeatProcessor.js';
+
+describe('HeartbeatProcessor smoke', () => {
+  it('decodes JSON buffer into object', () => {
+    const processor = new HeartbeatProcessor(
+      { batchSize: 100, batchTimeout: 1000 },
+      { insertHeartbeatEvents: async () => {} }
+    );
+
+    const payload = { ts_ms: 1700000000123, hotel_id: 1, room_id: 2, device_id: 'd', ip: '127.0.0.1', power_state: 1, guest_type: 0, cardless_state: 0, service_mask: 1, pms_state: 1, carbon_state: 0, device_count: 1, comm_seq: 1 };
+    const message = { value: Buffer.from(JSON.stringify(payload), 'utf8') };
+    const decoded = processor.unpackMessage(message);
+    assert.equal(decoded.hotel_id, 1);
+  });
+
+  it('accepts camelCase fields via normalizeHeartbeat', () => {
+    const processor = new HeartbeatProcessor(
+      { batchSize: 100, batchTimeout: 1000 },
+      { insertHeartbeatEvents: async () => {} }
+    );
+
+    const payload = { tsMs: 1700000000123, hotelId: 1, roomId: 2, deviceId: 'd', ip: '127.0.0.1', powerState: 1, guestType: 0, cardlessState: 0, serviceMask: 1, pmsState: 1, carbonState: 0, deviceCount: 1, commSeq: 1 };
+    assert.equal(processor.validateData(payload), true);
+  });
+});
+