fix: exclude fiat_output 80741 from pending balance calculation

[TaprootFreak]

Summary

• Replaces the obsolete exclusion of fiat_output 79958 (already isComplete=true) with 80741, which is currently blocking isReadyDate assignment for other outputs on the same source IBAN.
• Same pattern as fix: exclude fiat_output 79958 from pending balance #3390.

Test plan

• Verify setReadyDate job no longer counts 80741 in pendingBalance
• Confirm queued outputs on the affected source IBAN get their isReadyDate set

[github-actions]

ℹ️ New TODOs/FIXMEs (1)

+        if (tx.id === 80741) return false; // TODO: excluded from pending balance calculation