完善服务端材质渲染（未测试），删除profile表中不必要的isActive字段及相关接口

internal/model/profile.go

@@ -7,12 +7,11 @@ import (
 // Profile Minecraft 档案模型
 type Profile struct {
 	UUID          string     `gorm:"column:uuid;type:varchar(36);primaryKey" json:"uuid"`
-	UserID        int64      `gorm:"column:user_id;not null;index:idx_profiles_user_created,priority:1;index:idx_profiles_user_active,priority:1" json:"user_id"`
+	UserID        int64      `gorm:"column:user_id;not null;index:idx_profiles_user_created,priority:1" json:"user_id"`
 	Name          string     `gorm:"column:name;type:varchar(16);not null;uniqueIndex:idx_profiles_name" json:"name"` // Minecraft 角色名
 	SkinID        *int64     `gorm:"column:skin_id;type:bigint;index:idx_profiles_skin_id" json:"skin_id,omitempty"`
 	CapeID        *int64     `gorm:"column:cape_id;type:bigint;index:idx_profiles_cape_id" json:"cape_id,omitempty"`
 	RSAPrivateKey string     `gorm:"column:rsa_private_key;type:text;not null" json:"-"` // RSA 私钥不返回给前端
-	IsActive      bool       `gorm:"column:is_active;not null;default:true;index:idx_profiles_user_active,priority:2" json:"is_active"`
 	LastUsedAt    *time.Time `gorm:"column:last_used_at;type:timestamp;index:idx_profiles_last_used,sort:desc" json:"last_used_at,omitempty"`
 	CreatedAt     time.Time  `gorm:"column:created_at;type:timestamp;not null;default:CURRENT_TIMESTAMP;index:idx_profiles_user_created,priority:2,sort:desc" json:"created_at"`
 	UpdatedAt     time.Time  `gorm:"column:updated_at;type:timestamp;not null;default:CURRENT_TIMESTAMP" json:"updated_at"`
@@ -33,7 +32,6 @@ type ProfileResponse struct {
 	UUID       string              `json:"uuid"`
 	Name       string              `json:"name"`
 	Textures   ProfileTexturesData `json:"textures"`
-	IsActive   bool                `json:"is_active"`
 	LastUsedAt *time.Time          `json:"last_used_at,omitempty"`
 	CreatedAt  time.Time           `json:"created_at"`
 }