feat: 添加 Redis 配置项

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend/gateway/config/config.go

@@ -12,9 +12,18 @@ type Config struct {
 	Dubbo  DubboConfig
 	JWT    JWTConfig
 	OSS    OSSConfig
+	Redis  RedisConfig // 新增
 	Root   string
 }
 
+// RedisConfig Redis 配置
+type RedisConfig struct {
+	Host     string
+	Port     int
+	Password string
+	DB       int
+}
+
 // ServerConfig 服务器配置
 type ServerConfig struct {
 	Port string
@@ -92,6 +101,12 @@ func Load() *Config {
 			AssetDir:        getEnv("OSS_ASSET_DIR", "asset/"),
 			TokenExpireTime: getEnvInt("OSS_TOKEN_EXPIRE_TIME", 3600),
 		},
+		Redis: RedisConfig{
+			Host:     getEnv("REDIS_HOST", "127.0.0.1"),
+			Port:     getEnvInt("REDIS_PORT", 6379),
+			Password: getEnv("REDIS_PASSWORD", ""),
+			DB:       getEnvInt("REDIS_DB", 0),
+		},
 	}
 }