Fix available balance for BRC-20 while sending

[markmhendrickson]

E.g. here I'm seeing 4 BIMB under balances and in the token picker when initiating sending, but then it shows up as 0 BIMB in the form:

Screen.Recording.2023-12-15.at.07.07.04.mov

[pete-watters]

I took a look at this and I don't have BIMB but I do have SATS. I'm just wondering if this is as the amount is so small that its basically a dust amount and you can't get rid of it?

Of my supposed 100M SATS I only have 99211647 available for transfer so I think that could be happening here

[kyranjamie]

Because BRC-20 operates outside the norms of bitcoin, there's no concept of dust, as far as I know (so long as the inscription transfer itself is inscribed on a UTXO above network dust threshold).

[pete-watters]

OK thanks Kyran!

Reading into it a bit more(via our own tooltip) and I figured out the balance we show on the asset list is:

I tracked back this work to this PR but it's light on details

@markmhendrickson:

• do you have some inscriptions in this wallet in bimb?
• should we show your BRC-20 balance as the available balance

When I check in my wallet in the asset list it says I have 100M SATS but then I only have 99,211,647 available for transfer so I think that could be happening here. You can see below I have some inscriptions which are included in my asset list balance but excluded from my total balance

[314159265359879]

I have a wallet that has 1000 Fara
And It has a transfer inscription of 50 Fara (unused)

When I see the balance of FARA it is 1000

When I click send the available balance is 950 fara (the other 50 is already made transferable).

This is the complete situation:
$FARA balance: 1000
Transferable $FARA: 50
Available $FARA: 950

We should consider showing BRC-20 (for example $FARA) Balance and Transferable amount separately in the balance overview. Especially new users have trouble making sense of this. Some users do not realize they have already created a send inscription and the next step is to send that inscription and then they are surprised the balance is 950 instead of 1000.

[markmhendrickson]

Let's tackle this as part of the send UX redesign project more broadly.

[markmhendrickson]

I'm closing this issue since we intend to disable BRC-20 sends per #5773