天气查询：使用和风天气（JWT+Host）获取实时天气与未来预报；支持城市名/LocationID/经纬度；缺省地点可用 QWEATHER_DEFAULT_LOCATION。
Initial release of weather-query skill for QWeather integration. - Provides real-time weather and forecasts using QWeather API (JWT+Host). - Supports queries by city name, LocationID, or latitude/longitude. - Allows “today/tomorrow/the day after/future N days” forecast expressions. - Automatically resolves location input or uses QWEATHER_DEFAULT_LOCATION if set. - Returns comprehensive weather details: condition, temperature, humidity, wind, observation time, and daily forecast highlights. - Outputs clear errors with env variable guidance on API failure.