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

xiaomi/devices/base.go

@@ -142,7 +142,8 @@ func (d *BaseDevice) getSpecResolver() *specResolver {
 
 // specResolver is a thin wrapper to avoid importing specs package in every device file.
 type specResolver struct {
-	byType map[string]*miot.MIoTSpecProperty
+	byType   map[string]*miot.MIoTSpecProperty // property short name → first match
+	services []*miot.MIoTSpecService           // 保留服务列表（支持按服务查找）
 }
 
 func newSpecResolver(spec *miot.MIoTSpecInstance) *specResolver {
@@ -150,7 +151,8 @@ func newSpecResolver(spec *miot.MIoTSpecInstance) *specResolver {
 		return nil
 	}
 	r := &specResolver{
-		byType: make(map[string]*miot.MIoTSpecProperty),
+		byType:   make(map[string]*miot.MIoTSpecProperty),
+		services: spec.Services,
 	}
 	for _, svc := range spec.Services {
 		for i := range svc.Properties {
@@ -176,6 +178,17 @@ func propertyShortName(urn string) string {
 	return urn
 }
 
+// serviceShortName extracts the short name from a SPEC service URN.
+// E.g., "urn:miot-spec-v2:service:thermostat:0000784A:..." → "thermostat".
+// 注意：不能用 propertyShortName 解析服务 URN（其只认 parts[2]=="property"）。
+func serviceShortName(urn string) string {
+	parts := strings.Split(urn, ":")
+	if len(parts) >= 4 && parts[2] == "service" {
+		return parts[3]
+	}
+	return urn
+}
+
 func (r *specResolver) find(propType string) (siid, piid int, found bool) {
 	if r == nil {
 		return 0, 0, false
@@ -186,6 +199,38 @@ func (r *specResolver) find(propType string) (siid, piid int, found bool) {
 	return 0, 0, false
 }
 
+// findInService 在指定服务（短名，如 "thermostat"）内查找属性。
+// 用于多服务同名属性冲突时按服务精确定位（如三合一设备空调实体在 thermostat 服务）。
+func (r *specResolver) findInService(svcName, propType string) (siid, piid int, found bool) {
+	if r == nil {
+		return 0, 0, false
+	}
+	for _, svc := range r.services {
+		if svc == nil || serviceShortName(svc.Type) != svcName {
+			continue
+		}
+		for _, prop := range svc.Properties {
+			if prop != nil && propertyShortName(prop.Type) == propType {
+				return svc.IID, prop.PIID, true
+			}
+		}
+	}
+	return 0, 0, false
+}
+
+// hasService 判断设备是否包含指定服务（短名）。
+func (r *specResolver) hasService(svcName string) bool {
+	if r == nil {
+		return false
+	}
+	for _, svc := range r.services {
+		if svc != nil && serviceShortName(svc.Type) == svcName {
+			return true
+		}
+	}
+	return false
+}
+
 // prop returns the full SPEC property for the given type name.
 func (r *specResolver) prop(propType string) *miot.MIoTSpecProperty {
 	if r == nil {