feat: State→Props 命名统一 + 新增 Plug/Gateway 设备 + 分类系统重构

**命名统一（State → Props）**
- 所有设备类型：XxxState → XxxProps，GetState() → GetProps()，FetchState() → FetchProps()
- 回调接口：OnStateChanged → OnPropsChanged
- Bridge 层类型别名、示例代码、文档同步更名

**新增设备类型**
- KindPlug + Plug 驱动：智能插座/插头（TurnOn/TurnOff/IsOn/OnPropsChanged）
- KindGateway + Gateway 驱动：网关设备类型识别
- KindOccupancySensor 从 KindSensor 独立，添加 OccupancyProps

**设备分类系统改进**
- classifyByModel 改为按 key 长度降序匹配（防止 sensor 先于 sensor-occupy）
- 新增下划线变体识别（sensor_occupy、sensor_temp 等）
- outlet 重新归类为 Plug（非 Switch）
- 新增 Or() 组合过滤器

**连接桥增强**
- 设备创建成功后自动订阅属性变更
- 新增 nil 防护检查
- 支持 Plug/Speaker/Gateway/Occupancy 类型的 FetchProps 刷新
- 日志级别 Info → Debug

**AC 驱动增强**
- 新增 HasPower()、GetElectricPower()、GetPowerConsumption() 功率接口
- ACProps 新增 ElectricPower、PowerConsumption 字段
- valMapper：Desc 为空时 fallback 用 Name，key 统一小写

**MIoT 核心**
- 设备列表刷新改用 reflect.DeepEqual 全字段变更检测
- 移除 BLE/代理设备默认在线 hack
- RefreshDeviceAllProps 增加离线检查
- 新增 miot_errors.go：MIoT 错误码定义
- 全局日志级别 Info→Debug/Warn（降低噪音）

**示例与文档**
- 所有示例代码同步 API 变更
- 传感器示例改用 Or 组合过滤器
- ARCH_PLAN 等迁移文档同步更新

miot/miot_client_device.go

@@ -4,6 +4,7 @@ package miot
 
 import (
 	"fmt"
+	"reflect"
 	"regexp"
 	"strings"
 	"time"
@@ -103,12 +104,6 @@ func (c *MIoTClient) RefreshDevices(homeIDs []string) error {
 			info[k] = v
 		}
 
-		// BLE/proxy devices default online
-		connectType := getConnectType(info)
-		if connectType == 23 || connectType == 8 || connectType == 12 || connectType == 0 {
-			info["online"] = true
-		}
-
 		// Handle sub-devices: .s\d+ suffix
 		match := subDevPattern.FindString(did)
 		if match != "" {
@@ -165,20 +160,21 @@ func (c *MIoTClient) RefreshDevices(homeIDs []string) error {
 			} else {
 				c.deviceListCache[did] = cloneMap(info)
 			}
-			c.lgr.Infof("[MIoTClient] Device added: %s (%v)\n", did, info["name"])
+			c.lgr.Debugf("[MIoTClient] Device added: %s (%v)\n", did, info["name"])
 			changed = true
 		} else {
-			// Check if online status changed
-			newOnline := getOnline(info)
-			oldOnline := getOnline(oldInfo)
-			if newOnline != oldOnline {
-				oldInfo["online"] = newOnline
-				c.deviceListCloud[did] = oldInfo
-				if cacheInfo, ok := c.deviceListCache[did]; ok {
-					cacheInfo["online"] = newOnline
+			// 检测并同步所有变更字段（name/model/nickname 等）
+			for k, v := range info {
+				if oldV, ok := oldInfo[k]; !ok || !reflect.DeepEqual(oldV, v) {
+					oldInfo[k] = v
+					changed = true
+				}
+			}
+			c.deviceListCloud[did] = oldInfo
+			if cacheInfo, ok := c.deviceListCache[did]; ok {
+				for k, v := range info {
+					cacheInfo[k] = v
 				}
-				c.lgr.Infof("[MIoTClient] Device online changed: %s online=%v\n", did, newOnline)
-				changed = true
 			}
 		}
 	}
@@ -277,27 +273,43 @@ func (c *MIoTClient) aggregateDeviceState(did string) {
 		return
 	}
 
-	// Aggregate from three sources
+	// OR 聚合：任一来源显式 online=true → 在线；
+	// 否则任一来源显式 online=false → 离线；
+	// 否则（无来源提供 online 字段）→ 保留缓存旧值，缓存也没有则默认在线。
 	online := false
+	explicitTrue := false
+	explicitFalse := false
 
-	if cloudInfo, exists := c.deviceListCloud[did]; exists {
-		if o, ok := cloudInfo["online"].(bool); ok && o {
-			online = true
+	sources := []map[string]interface{}{
+		c.deviceListCloud[did],
+		c.deviceListGateway[did],
+		c.deviceListLan[did],
+	}
+	for _, info := range sources {
+		if o, ok := info["online"].(bool); ok {
+			if o {
+				explicitTrue = true
+			} else {
+				explicitFalse = true
+			}
+		} else if _, exists := info["online"]; exists {
+			c.lgr.Debugf("[MIoTClient] %s online type mismatch: %v (%T)\n", did, info["online"], info["online"])
 		}
 	}
-	if !online {
-		if gwInfo, exists := c.deviceListGateway[did]; exists {
-			if o, ok := gwInfo["online"].(bool); ok && o {
-				online = true
-			}
-		}
-	}
-	if !online {
-		if lanInfo, exists := c.deviceListLan[did]; exists {
-			if o, ok := lanInfo["online"].(bool); ok && o {
-				online = true
-			}
+
+	switch {
+	case explicitTrue:
+		online = true
+	case explicitFalse:
+		online = false
+	default:
+		if oldOnline, ok := cacheInfo["online"].(bool); ok {
+			online = oldOnline
+		} else {
+			online = true // 云列表里有但没 online 字段，假设在线
 		}
+		c.lgr.Debugf("[MIoTClient] %s no online field from cloud/gw/lan, fallback online=%v (cache=%v)\n",
+			did, online, cacheInfo["online"])
 	}
 
 	cacheInfo["online"] = online