refactor: 重构服务层和仓库层

pkg/database/cache.go

@@ -296,6 +296,11 @@ func (b *CacheKeyBuilder) Texture(textureID int64) string {
 	return fmt.Sprintf("%stexture:id:%d", b.prefix, textureID)
 }
 
+// TextureByHash 构建材质hash缓存键
+func (b *CacheKeyBuilder) TextureByHash(hash string) string {
+	return fmt.Sprintf("%stexture:hash:%s", b.prefix, hash)
+}
+
 // TextureList 构建材质列表缓存键
 func (b *CacheKeyBuilder) TextureList(userID int64, page int) string {
 	return fmt.Sprintf("%stexture:user:%d:page:%d", b.prefix, userID, page)

pkg/database/postgres.go

@@ -69,10 +69,15 @@ func New(cfg config.DatabaseConfig) (*gorm.DB, error) {
 		connMaxLifetime = 1 * time.Hour
 	}
 
+	connMaxIdleTime := cfg.ConnMaxIdleTime
+	if connMaxIdleTime <= 0 {
+		connMaxIdleTime = 10 * time.Minute
+	}
+
 	sqlDB.SetMaxIdleConns(maxIdleConns)
 	sqlDB.SetMaxOpenConns(maxOpenConns)
 	sqlDB.SetConnMaxLifetime(connMaxLifetime)
-	sqlDB.SetConnMaxIdleTime(10 * time.Minute)
+	sqlDB.SetConnMaxIdleTime(connMaxIdleTime)
 
 	// 测试连接
 	if err := sqlDB.Ping(); err != nil {