refactor: Enhance texture handling and configuration

- Removed Swagger documentation import from the main server file.
- Updated TextureInfo struct to include UploaderUsername for better texture metadata.
- Modified texture repository methods to preload Uploader information when fetching textures by hash.
- Improved texture service to handle cases where Uploader information is missing, ensuring proper caching and retrieval.
- Added Redis configuration options in the environment variable setup for better flexibility.

pkg/config/config.go

@@ -131,13 +131,14 @@ type SecurityConfig struct {
 // Load 加载配置 - 完全从环境变量加载，不依赖YAML文件
 func Load() (*Config, error) {
 	// 加载.env文件（如果存在）
-	_ = godotenv.Load(".env")
+	if err := godotenv.Load(".env"); err != nil {
+		fmt.Printf("警告: 无法加载 .env 文件: %v\n", err)
+	}
 
 	// 设置默认值
 	setDefaults()
 
-	// 设置环境变量前缀
-	viper.SetEnvPrefix("CARROTSKIN")
+	// 自动读取环境变量（不设置前缀，因为 BindEnv 已经明确指定了变量名）
 	viper.AutomaticEnv()
 
 	// 手动设置环境变量映射
@@ -302,6 +303,7 @@ func setupEnvMappings() {
 
 // overrideFromEnv 从环境变量中覆盖配置
 func overrideFromEnv(config *Config) {
+
 	// 处理RustFS存储桶配置
 	if texturesBucket := os.Getenv("RUSTFS_BUCKET_TEXTURES"); texturesBucket != "" {
 		if config.RustFS.Buckets == nil {
@@ -342,6 +344,24 @@ func overrideFromEnv(config *Config) {
 		}
 	}
 
+	// 处理Redis基本配置
+	if host := os.Getenv("REDIS_HOST"); host != "" {
+		config.Redis.Host = host
+	}
+	if port := os.Getenv("REDIS_PORT"); port != "" {
+		if val, err := strconv.Atoi(port); err == nil {
+			config.Redis.Port = val
+		}
+	}
+	if password := os.Getenv("REDIS_PASSWORD"); password != "" {
+		config.Redis.Password = password
+	}
+	if database := os.Getenv("REDIS_DATABASE"); database != "" {
+		if val, err := strconv.Atoi(database); err == nil {
+			config.Redis.Database = val
+		}
+	}
+
 	// 处理Redis连接池配置
 	if poolSize := os.Getenv("REDIS_POOL_SIZE"); poolSize != "" {
 		if val, err := strconv.Atoi(poolSize); err == nil {