feat: AC 三合一设备支持 + 新增 Plug/Gateway 驱动 + Cover 结构化重构

**AC 驱动增强**
- 支持 thermostat + air-conditioner + air-fresh 多服务三合一设备，属性跨服务合并解析
- 新增 specResolver.findValListInService/findInService/hasService/serviceShortName 方法
- 移除 KindThermostat，heater/electric-blanket/thermostat 重新归类为 KindAirConditioner

**Cover 窗帘重构**
- CoverProps 结构化：Position/Status/Fault 分离
- SetPosition 优先写 target-position，回退 current-position
- OnPropsChanged/FetchProps 支持多属性同步刷新

**新增设备类型**
- Plug 驱动：插座/插头，支持开合、在线状态、属性变更订阅
- Gateway 驱动：网关设备类型识别
- miot/miot_errors.go：新增 MIoT 云端错误码定义

**MIoT 客户端健壮性**
- SetProp 空结果视为失败；设备被移除或离线时自动刷新设备列表
- GetDevices 的 has_more 改用 parseBool 严格解析
- MIPS SubscribeMany 批量订阅减少往返
- matchURN 改为按段精确匹配，避免 tofan 误匹配 fan

**Bridge**
- 移除 Thermostat case，Cover 改用结构化 CoverProps
- 新增设备创建后自动订阅属性变更

**其他**
- 日志整体 Info → Debug 降噪
- .gitignore 忽略 /.codebuddy/memory
- 更新 devices_test 与 08_adv_filter_classify 示例

bridge/bridge.go

@@ -143,7 +143,7 @@ func newBridge(ctx context.Context, id int64, uuid string, auth xiaomi.AuthInfo,
 
 	for _, info := range devList {
 		d, createErr := devices.Create(client, info)
-		if createErr != nil {
+		if createErr != nil || d == nil {
 			continue
 		}
 		b.dv[info.DID] = d
@@ -179,7 +179,6 @@ func deviceTypeName(d interface{}) string {
 	case devices.Humidifier:       return devices.TypeHumidifier
 	case devices.Vacuum:           return devices.TypeVacuum
 	case devices.WaterHeater:      return devices.TypeWaterHeater
-	case devices.Thermostat:       return devices.TypeThermostat
 	case devices.TempHumiditySensor: return devices.TypeTempHumidSensor
 	case devices.OccupancySensor:  return devices.TypeOccupancySensor
 	case devices.Speaker:          return devices.TypeSpeaker
@@ -195,7 +194,7 @@ func (b *Bridge) AC(did string) (devices.AirConditioner, error) {
 	d, ok := b.dv[did]
 	if !ok { return nil, fmt.Errorf("bridge: device %s not found", did) }
 	ac, ok := d.(devices.AirConditioner)
-	if !ok { return nil, fmt.Errorf("bridge: device %s is not an AirConditioner", did) }
+	if !ok { return nil, fmt.Errorf("bridge: device %s is not an AirConditioner (got %T)", did, d) }
 	return ac, nil
 }
 func (b *Bridge) Light(did string) (devices.Light, error) {
@@ -247,13 +246,6 @@ func (b *Bridge) WaterHeater(did string) (devices.WaterHeater, error) {
 	if !ok { return nil, fmt.Errorf("bridge: device %s is not a WaterHeater", did) }
 	return wh, nil
 }
-func (b *Bridge) Thermostat(did string) (devices.Thermostat, error) {
-	d, ok := b.dv[did]
-	if !ok { return nil, fmt.Errorf("bridge: device %s not found", did) }
-	t, ok := d.(devices.Thermostat)
-	if !ok { return nil, fmt.Errorf("bridge: device %s is not a Thermostat", did) }
-	return t, nil
-}
 func (b *Bridge) TempHumidity(did string) (devices.TempHumiditySensor, error) {
 	d, ok := b.dv[did]
 	if !ok { return nil, fmt.Errorf("bridge: device %s not found", did) }