restore_landed_orders: fix restore for bundle with refund

[dvush]

📝 Summary

Refund in bundles was restored incorrectly because payer and receiver tx hashes were swapped.

💡 Motivation and Context

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✅ I have completed the following steps:

• Run make lint
• Run make test
• Added tests (if applicable)

[Copilot]

Pull Request Overview

This PR fixes a bug in the bundle refund restoration logic where the payer and receiver transaction hashes were incorrectly swapped, causing refunds to be applied to the wrong transaction.

Key Changes

• Renamed receiver_hash to refund_payer_hash to clarify that this represents the payer transaction
• Inverted the refund logic so that refund_percent is applied to the payer transaction (matching the hash) instead of other transactions
• Updated test data to use a different transaction hash (0x02 instead of 0x01) to properly validate the fix

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