新增: 星座运势+AI资讯+知识卡片+桌面设置窗口+秒显示开关

- 星座运势: 天聚数行API集成，5维进度条+幸运标签+今日概述
- AI资讯: 天聚数行API，图文布局5条展示，文件缓存2小时刷新
- 知识卡片: AI生成，关键字+提示词配置，30分钟刷新
- 桌面设置: 独立WebView2窗口，760x1350，含壁纸/布局/城市/颜色等配置
- 显示控制: 壁纸/时间/天气/星座/知识/AI资讯独立开关，秒显示开关
- 文件缓存: 星座运势+AI资讯缓存到本地，启动即显示上次数据
- initDone防抖: 防止设置窗口初始化触发卡片重载

weather.go

@@ -8,6 +8,7 @@ import (
 	"net/http"
 	"regexp"
 	"strings"
+"sync"
 	"time"
 )
 
@@ -34,6 +35,12 @@ var cities = []City{
 	{"101050101", "哈尔滨", "哈尔滨", "黑龙江"},
 	{"101250101", "长沙", "长沙", "湖南"},
 	{"101270101", "成都", "成都", "四川"},
+	{"101090101", "石家庄", "石家庄", "河北"},
+	{"101090206", "任丘", "任丘", "河北"},
+	{"101090301", "邯郸", "邯郸", "河北"},
+	{"101290106", "宣威", "宣威", "云南"},
+	{"101290101", "昆明", "昆明", "云南"},
+	{"101260101", "贵阳", "贵阳", "贵州"},
 }
 
 var defaultCity = City{"101200101", "武汉", "武汉", "湖北"}
@@ -174,7 +181,29 @@ type currentWeather struct {
 	Temp string `json:"temp"`
 }
 
+var (
+	weatherCacheMu   sync.Mutex
+	weatherCache     map[string]time.Time
+	weatherCacheData map[string]string
+)
+
+func init() {
+	weatherCache = make(map[string]time.Time)
+	weatherCacheData = make(map[string]string)
+}
+
 func fetchAndPushWeather(city City) {
+	// 5 分钟内同一城市不重复请求
+	weatherCacheMu.Lock()
+	if last, ok := weatherCache[city.ID]; ok && time.Since(last) < 5*time.Minute {
+		if cached, ok := weatherCacheData[city.ID]; ok {
+			weatherCacheMu.Unlock()
+			evalJS(fmt.Sprintf(`if(window.updateWeatherFromGo) window.updateWeatherFromGo(%s)`, cached))
+			return
+		}
+	}
+	weatherCacheMu.Unlock()
+
 	type weatherData struct {
 		Current string       `json:"current"`
 		Hourly  []hourlyItem `json:"hourly"`
@@ -200,6 +229,10 @@ func fetchAndPushWeather(city City) {
 	wd.Daily = fetchDailyForecast(city.ID)
 
 	jsonData, _ := json.Marshal(wd)
+	weatherCacheMu.Lock()
+	weatherCache[city.ID] = time.Now()
+	weatherCacheData[city.ID] = string(jsonData)
+	weatherCacheMu.Unlock()
 	evalJS(fmt.Sprintf(`if(window.updateWeatherFromGo) window.updateWeatherFromGo(%s)`, string(jsonData)))
 	log.Println("天气已推送:", wd.Current)
 }