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

miot/examples/config.json

@@ -0,0 +1,17 @@
+{
+  "auth_info": {
+    "access_token": "V3_R0Je3kB-S6Mf1O7kKDPm3EDvgHiwsJMze4mVkPG0rRGHYv0KQEUVUyNRJ-ittoSSOmbNxso1syxYrKjOIAGck6EatzRIJsyULI5maduCo-GUyfHu4A6ZYa8zWD6EXp6pmnLim8KT8i1mDbczyOsFTQhNxWY1tq4CM54xlVhFqQwGS65SVV1DhrXvW9XU3nPa",
+    "refresh_token": "R3_WZYXokg6Nnmj2Ceib_bcPtI2fr548hNrjCnK5aG_Lm8-8X5PJeK5SHpicsOBy4Z5cWP4672pviFfWORSsSCpH3tF7UXY8Xuib8uyQP4ppxRiPssybXb67VLFfEHa7raQYtVH_2NHkp53flOZKiRtcFHOX4HAZoC7_AKuIdfWcIa4P3k03XmQF1WG0Ccp4BMH12P7eOJBHyU3LScJbFqVLQ",
+    "mac_key": "0K_213_6BrQPCpmmfolHVZpTR1Y",
+    "expires_in": 259200,
+    "expires_ts": 1783011905
+  },
+  "uid": "2897121707",
+  "cloud_server": "cn",
+  "uuid": "84259d29c352cad945d1f5e3dab3d89b",
+  "redirect_url": "http://homeassistant.local:8123",
+  "language": "en",
+  "ctrl_mode": "auto",
+  "storage_path": "",
+  "nick_name": "Xiaomi"
+}