ux: placed orders should try to survive Bison wallet restart

[norwnd]

Running Bison wallet on personal PC/laptop presents the following challenge:

• I place a bunch of orders
• after a while I have to shut down (or restart) Bison wallet - be it due to laptop needing an OS update, or just me requiring all the resources of my PC for another task
• when I start Bison wallet next time my orders have been revoked by server (I assume there is also reputation loss) and I have to place them again manually one by one

I could cancel orders manually also before shutting down Bison wallet, but I don't even always remember Bison wallet is running (and that's too much to ask anyway).

This can probably be automated by:

• storing a snapshot of open orders on disk
• cancelling orders upon normal termination of Bison wallet
• restoring orders (if any) from that snapshot upon Bison wallet start

[JoeGruffins]

Currently the server will cancel your booked orders after some time. If they have not matched I don't think there is a penalty.

Canceling all orders upon normal shutdown sounds reasonable to me. I don't know why we don't do that already tbh.

I don't know if restoring previous orders is a great idea. If the markets have swung wildly you could be shooting yourself in the foot.

[norwnd]

I don't know if restoring previous orders is a great idea. If the markets have swung wildly you could be shooting yourself in the foot.

I thought about it too, my reasoning for restoring orders would be:

if I didn't cancel limit order(s) explicitly I am OK with them executing because it's the same thing that happens on CEX - if I close my Binance browser tab(s) and get back to it later, my orders might have executed since I didn't cancel those explicitly on Binance (the only difference being Bison DEX won't execute orders for you while you are offline)