fix(signing): show minted assets and simulation failures in the group review [PERA-4729]

[yasin-ce]

Description

• Surfaces assets minted by the user's own accounts in the group review. A mint moves no existing asset, so it produced no balance delta and a mint group previously showed no impact at all.
• Surfaces simulation failures in the same summary rather than leaving the review silent about them.

Related Issues

• closes https://algorandfoundation.atlassian.net/browse/PERA-4729

Checklist

• Have you tested your changes locally?
• Have you reviewed the code for any potential issues?
• Have you documented any necessary changes in the project's documentation?
• Have you added any necessary tests for your changes?
• Have you updated any relevant dependencies?

Additional Notes

createdAssets rows are keyed by group position, not asset id: an acfg mint carries assetId: 0 until the group confirms, and 0 is ALGO's id in this map — so a mint cannot be netted into deltas without colliding with ALGO. That is why it is a separate list rather than another delta.

Not device-verified. The multi-mint case is the one worth eyeballing on a device before this leaves draft; the unit tests cover the computation, not the rendered review.

[filipetamota]

@yasin-ce QA and code review done ✅