Swaps are non-custodial and funds won't be lost unless you lose your keys. Since you deleted your app the recovery is a bit more involved and you'll have to contact us on Telegram. We have now added an explicit warning not to delete the app mid swap and in our December release we will have support for boltz's swap restore api, which will help in cases where users lose their phone or by accident delete the app mid swap - this flow requires boltz to share their public key. In a future release we will also have metadata backups which will allow recovery without boltz, where we will help you backup boltz's pubkey as well.