[ENHANCE] Store transaction hash in addition to receipt ID

[lachlanglen]

Summary

Need to find a way to track receipts for transaction & find the associated transaction hash for a given receipt, and store this on the relevant models (should contain both tx_hash and receipt_id)

Additionally, receipt ID should not be stored in tx_hash field.

Motivation

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Description

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Alternatives

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Risks

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Acceptance Criteria

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Additional Information

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