删除服务端材质渲染功能及system_config表，转为环境变量配置，初步配置管理员功能

pkg/config/config.go

@@ -14,6 +14,7 @@ import (
 // Config 应用配置结构体
 type Config struct {
 	Environment string         `mapstructure:"environment"`
+	Site        SiteConfig     `mapstructure:"site"`
 	Server      ServerConfig   `mapstructure:"server"`
 	Database    DatabaseConfig `mapstructure:"database"`
 	Redis       RedisConfig    `mapstructure:"redis"`
@@ -25,6 +26,18 @@ type Config struct {
 	Security    SecurityConfig `mapstructure:"security"`
 }
 
+// SiteConfig 站点配置
+type SiteConfig struct {
+	Name                  string `mapstructure:"name"`
+	Description           string `mapstructure:"description"`
+	RegistrationEnabled   bool   `mapstructure:"registration_enabled"`
+	DefaultAvatar         string `mapstructure:"default_avatar"`
+	MaxTexturesPerUser    int    `mapstructure:"max_textures_per_user"`
+	MaxProfilesPerUser    int    `mapstructure:"max_profiles_per_user"`
+	CheckinReward         int    `mapstructure:"checkin_reward"`
+	TextureDownloadReward int    `mapstructure:"texture_download_reward"`
+}
+
 // ServerConfig 服务器配置
 type ServerConfig struct {
 	Port         string        `mapstructure:"port"`
@@ -201,6 +214,16 @@ func setDefaults() {
 	// 安全默认配置
 	viper.SetDefault("security.allowed_origins", []string{"*"})
 	viper.SetDefault("security.allowed_domains", []string{"localhost", "127.0.0.1"})
+
+	// 站点默认配置
+	viper.SetDefault("site.name", "CarrotSkin")
+	viper.SetDefault("site.description", "一个优秀的Minecraft皮肤站")
+	viper.SetDefault("site.registration_enabled", true)
+	viper.SetDefault("site.default_avatar", "")
+	viper.SetDefault("site.max_textures_per_user", 50)
+	viper.SetDefault("site.max_profiles_per_user", 5)
+	viper.SetDefault("site.checkin_reward", 10)
+	viper.SetDefault("site.texture_download_reward", 1)
 }
 
 // setupEnvMappings 设置环境变量映射
@@ -262,6 +285,16 @@ func setupEnvMappings() {
 	viper.BindEnv("email.username", "EMAIL_USERNAME")
 	viper.BindEnv("email.password", "EMAIL_PASSWORD")
 	viper.BindEnv("email.from_name", "EMAIL_FROM_NAME")
+
+	// 站点配置
+	viper.BindEnv("site.name", "SITE_NAME")
+	viper.BindEnv("site.description", "SITE_DESCRIPTION")
+	viper.BindEnv("site.registration_enabled", "REGISTRATION_ENABLED")
+	viper.BindEnv("site.default_avatar", "DEFAULT_AVATAR")
+	viper.BindEnv("site.max_textures_per_user", "MAX_TEXTURES_PER_USER")
+	viper.BindEnv("site.max_profiles_per_user", "MAX_PROFILES_PER_USER")
+	viper.BindEnv("site.checkin_reward", "CHECKIN_REWARD")
+	viper.BindEnv("site.texture_download_reward", "TEXTURE_DOWNLOAD_REWARD")
 }
 
 // overrideFromEnv 从环境变量中覆盖配置