feat: 添加回路名称字段并实现元数据缓存查询

在 RCU 事件处理中新增回路名称（loop_name）字段，用于标识具体设备回路。
- 在 rcu_action_events 表中添加 loop_name 字段
- 新增项目元数据缓存模块，每日从 temporary_project 表刷新房间与回路信息
- 处理消息时，根据 device_id、dev_addr 等字段查询缓存获取回路名称
- 若缓存未命中，则根据设备类型规则生成兜底名称
- 更新环境变量、文档及测试用例以适配新功能

bls-rcu-action-backend/tests/processor.test.js

@@ -1,5 +1,6 @@
 import { describe, it, expect } from 'vitest';
 import { buildRowsFromPayload } from '../src/processor/index.js';
+import projectMetadata from '../src/cache/projectMetadata.js';
 
 describe('Processor Logic', () => {
   const basePayload = {
@@ -95,12 +96,15 @@ describe('Processor Logic', () => {
     const payload = {
       ...basePayload,
       direction: '上报',
-      cmd_word: '0x0F'
+      cmd_word: '0x0F',
+      control_list: [
+        { dev_type: 1, dev_addr: 1, dev_loop: 1, dev_data: 1, type_h: 0 }
+      ]
     };
 
     const rows = buildRowsFromPayload(payload);
     expect(rows).toHaveLength(1);
-    expect(rows[0].action_type).toBe('ACK');
+    expect(rows[0].action_type).toBe('设备回路状态');
   });
 
   it('should fallback when lists are empty for 0x36', () => {
@@ -199,4 +203,27 @@ describe('Processor Logic', () => {
       trace_id: 'trace-123'
     });
   });
+
+  it('should enrich rows with loop_name from metadata', () => {
+    // Mock metadata
+    projectMetadata.roomMap.set('dev_001', 101);
+    // Key format: roomTypeId:00Type00Addr00Loop
+    // type=1, addr=10, loop=1 -> 001010001
+    projectMetadata.loopMap.set('101:001010001', 'Main Chandelier');
+
+    const payload = {
+      ...basePayload,
+      direction: '上报',
+      cmd_word: '0x36',
+      device_list: [
+        { dev_type: 1, dev_addr: 10, dev_loop: 1, dev_data: 100 }, // Should match 001010001
+        { dev_type: 1, dev_addr: 10, dev_loop: 2, dev_data: 0 }    // Should not match (001010002) -> Fallback
+      ]
+    };
+
+    const rows = buildRowsFromPayload(payload);
+    expect(rows[0].loop_name).toBe('Main Chandelier');
+    // dev_type 1 is 'Dev_Host_HVout'
+    expect(rows[1].loop_name).toBe('[1Dev_Host_HVout-10-2]');
+  });
 });