Initial commit: TaskPool React panel

- React frontend with route-level code splitting
- Backend rebranded from Baihu to TaskPool
- DB brand migration script and local compatibility

internal/cache/site_cache.go

@@ -0,0 +1,94 @@
+package cache
+
+import (
+	"sync"
+
+	"github.com/engigu/taskpool/internal/constant"
+	"github.com/engigu/taskpool/internal/database"
+	"github.com/engigu/taskpool/internal/models"
+)
+
+// siteCache 站点设置内存缓存
+var (
+	siteCache     = make(map[string]string)
+	siteCacheMu   sync.RWMutex
+	siteCacheInit bool
+)
+
+// LoadSiteCache 从数据库加载站点设置到缓存
+func LoadSiteCache() {
+	siteCacheMu.Lock()
+	defer siteCacheMu.Unlock()
+
+	// 先填充默认值
+	if defaults, ok := constant.DefaultSettings[constant.SectionSite]; ok {
+		for k, v := range defaults {
+			siteCache[k] = v
+		}
+	}
+
+	// 从数据库加载覆盖
+	var settings []models.Setting
+	database.DB.Where("section = ?", constant.SectionSite).Find(&settings)
+	for _, setting := range settings {
+		siteCache[setting.Key] = string(setting.Value)
+	}
+	siteCacheInit = true
+}
+
+// ensureSiteCache 确保站点缓存已初始化
+func ensureSiteCache() {
+	siteCacheMu.RLock()
+	init := siteCacheInit
+	siteCacheMu.RUnlock()
+
+	if !init {
+		LoadSiteCache()
+	}
+}
+
+// GetSiteCache 从缓存获取站点设置
+func GetSiteCache(key string) string {
+	ensureSiteCache()
+
+	siteCacheMu.RLock()
+	defer siteCacheMu.RUnlock()
+
+	if val, ok := siteCache[key]; ok {
+		return val
+	}
+	if def, ok := constant.DefaultSettings[constant.SectionSite][key]; ok {
+		return def
+	}
+	return ""
+}
+
+// SetSiteCache 更新缓存中的站点设置
+func SetSiteCache(key, value string) {
+	siteCacheMu.Lock()
+	siteCache[key] = value
+	siteCacheMu.Unlock()
+}
+
+// GetSiteCacheAll 获取整个站点设置缓存
+func GetSiteCacheAll() map[string]string {
+	ensureSiteCache()
+
+	siteCacheMu.RLock()
+	defer siteCacheMu.RUnlock()
+
+	result := make(map[string]string)
+	for k, v := range siteCache {
+		result[k] = v
+	}
+	return result
+}
+
+// SetSiteCacheBatch 批量更新缓存
+func SetSiteCacheBatch(values map[string]string) {
+	siteCacheMu.Lock()
+	for k, v := range values {
+		siteCache[k] = v
+	}
+	siteCacheMu.Unlock()
+}