feat: 扩展心跳消息支持电力与空调设备数组字段

新增 Kafka 消息中 electricity[] 和 air_conditioner[] 数组字段支持，用于存储电力与空调设备明细数据。数据库表新增对应数组列并创建 GIN 索引优化查询性能，processor 实现数组字段校验与聚合转换逻辑。

主要变更：
- Kafka 消息规范新增 electricity 和 air_conditioner 数组字段定义
- 数据库 heartbeat_events 表新增 14 个数组列并创建 4 个 GIN 索引
- processor 实现数组字段解析、校验及聚合转换逻辑
- 更新相关文档与测试用例，确保端到端功能完整

scripts/db/smokeTest.js

@@ -43,8 +43,11 @@ async function main() {
     `INSERT INTO heartbeat.heartbeat_events (
       ts_ms, hotel_id, room_id, device_id, ip,
       power_state, guest_type, cardless_state, service_mask,
-      pms_state, carbon_state, device_count, comm_seq, extra
-    ) VALUES ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12,$13,$14)`,
+      pms_state, carbon_state, device_count, comm_seq,
+      elec_address, voltage, ampere, power, phase, energy, sum_energy,
+      air_address, state, model, speed, set_temp, now_temp, solenoid_valve,
+      extra
+    ) VALUES ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12,$13,$14,$15,$16,$17,$18,$19,$20,$21,$22,$23,$24,$25,$26,$27,$28)`,
     [
       ts,
       1,
@@ -59,6 +62,20 @@ async function main() {
       0,
       1,
       1,
+      ['add11', 'add12'],
+      [3.2, 3.3],
+      [1.1, 2.2],
+      [704.3, 705.3],
+      ['A', 'B'],
+      [10.5, 11.5],
+      [100.5, 101.5],
+      ['ac1'],
+      [1],
+      [2],
+      [3],
+      [26],
+      [25],
+      [1],
       { source: 'smoke-test' },
     ]
   );