chore: reorder api package structure

internal/database/define.go

@@ -36,15 +36,13 @@ type Command struct {
 	Timestamps
 }
 
-type Key struct {
+type AccessKey struct {
 	ID       int `gorm:"primaryKey;not null;"`
 	MetaName string
 	KeyName  string `gorm:"not null;"`
 	// We don't store the key itself, we hash the key
 	KeyHash string `gorm:"not null;"`
 	// we're cooking without pepper
-	KeySalt   string    `gorm:"not null;"`
-	CreatedAt time.Time `gorm:"not null;"`
 	Timestamps
 }