fix: update balance on channel close from connections

[jvsena42]

Fixes #721

Description

This PR creates a transfer activity record when closing a channel from the Connections screen, matching the existing behavior in the Transfer to Savings flow.

When closing via Connections > Detail > Close Connection, no TransferEntity was created, so DeriveBalanceStateUseCase had no record to subtract the closing channel's balance from the displayed spending total. The Transfer to Savings flow already handled this correctly by calling transferRepo.createTransfer() with type COOP_CLOSE after a successful close.

Preview

Screen_recording_20260210_141203.webm

QA Notes

1. Setup a wallet with 2 open channels
2. Navigate to Settings > Connections
3. Select a channel and tap "Close Connection"
4. Verify the spending balance on the home screen decreases after the close
5. Force stop and reopen the app -- verify the balance remains correct

[claude]

Code review

No issues found. Checked for bugs and CLAUDE.md compliance.

[jvsena42]

the transfer card was eventually dismissed after the channel closing confirmation

[ovitrif]

utAck

Nice fix!