feat: optional MySQL/MariaDB database driver for deployments that cannot use local SQLite

internal/infrastructure/persistence/models/inviteModel.go

@@ -4,7 +4,7 @@ import "time"
 
 type Invite struct {
 	ID         uint32 `gorm:"primaryKey;autoIncrement"`
-	Email      string `gorm:"index;not null"`
+	Email      string `gorm:"index;not null;size:255"`
 	HashedCode string `gorm:"not null"`
 	ExpiresAt  time.Time
 	InvitedBy  uint32 `gorm:"not null"`