fix(ops): 同步区域设备关联配置至 Redis 缓存

- 修复管理后台更新、绑定、解绑设备关联配置时未清理缓存导致旧配置(如客流阈值)在24小时内依然生效的问题
- 采用 Cache-Aside 模式，在 DB 操作后主动逐出 (evictConfigCache) 对应区域的关联类型缓存，确保高可用和强一致性
- 补充 AreaDeviceService Mock，修复并更新对应单元测试

viewsh-module-ops/viewsh-module-ops-biz/src/main/java/com/viewsh/module/ops/service/area/AreaDeviceRelationServiceImpl.java

@@ -43,6 +43,9 @@ public class AreaDeviceRelationServiceImpl implements AreaDeviceRelationService
     @Resource
     private IotDeviceQueryApi iotDeviceQueryApi;
 
+    @Resource
+    private AreaDeviceService areaDeviceService;
+
     private static final String TYPE_TRAFFIC_COUNTER = "TRAFFIC_COUNTER";
     private static final String TYPE_BEACON = "BEACON";
     private static final String TYPE_BADGE = "BADGE";
@@ -115,6 +118,10 @@ public class AreaDeviceRelationServiceImpl implements AreaDeviceRelationService
                 .build();
 
         opsAreaDeviceRelationMapper.insert(relation);
+        
+        // 清除可能存在的 NULL_CACHE 标记
+        areaDeviceService.evictConfigCache(relation.getAreaId(), relation.getRelationType());
+        
         return relation.getId();
     }
 
@@ -140,6 +147,9 @@ public class AreaDeviceRelationServiceImpl implements AreaDeviceRelationService
         }
 
         opsAreaDeviceRelationMapper.updateById(relation);
+        
+        // 删缓存以同步 Redis
+        areaDeviceService.evictConfigCache(existing.getAreaId(), existing.getRelationType());
     }
 
     @Override
@@ -150,7 +160,12 @@ public class AreaDeviceRelationServiceImpl implements AreaDeviceRelationService
             return false;
         }
 
-        return opsAreaDeviceRelationMapper.deleteById(id) > 0;
+        boolean deleted = opsAreaDeviceRelationMapper.deleteById(id) > 0;
+        if (deleted) {
+            // 同步 Redis 缓存
+            areaDeviceService.evictConfigCache(existing.getAreaId(), existing.getRelationType());
+        }
+        return deleted;
     }
 
     /**

viewsh-module-ops/viewsh-module-ops-biz/src/test/java/com/viewsh/module/ops/service/area/AreaDeviceRelationServiceTest.java

@@ -46,6 +46,9 @@ class AreaDeviceRelationServiceTest {
     @Mock
     private OpsBusAreaMapper opsBusAreaMapper;
 
+    @Mock
+    private AreaDeviceService areaDeviceService;
+
     @InjectMocks
     private AreaDeviceRelationServiceImpl areaDeviceRelationService;