[villadel]

#886 — return tx_hash in error response for failed invoice creation

• Attach tx_hash to thrown errors in createInvoice() for timeout, FAILED status and ERROR send result
• Surface tx_hash in POST /invoices error JSON body so callers can identify orphaned contract records

#885 — use UTC timestamps instead of local time

• Add formatUTC() helper in TransactionHistory.tsx
• Replace toLocaleString() with ISO UTC string in both TransactionHistory and InvoicePayment expiry display

#884 — fix merchant invoice search ignoring status filter

• Add normaliseStatus() helper in InvoiceSearchFilter.tsx
• Use normalised string comparison to handle TypeScript string-enum vs string-union mismatch between comebackhere-frontend and frontend

#883 — add settlement transaction hash to receipt view

• Add proposed_tx_hash and executed_tx_hash to Settlement type
• Include both fields in GET /pending-settlements API response
• Display them in SettlementDetail.tsx with monospace hash styling
• Add .settlement-detail__value--hash CSS class

chore: expand .gitignore

• Add test snapshots (snapshots/, *.snap)
• Add Playwright reports, build outputs, TS/Vite cache
• Add Cargo target/, OS noise, editor files, logs

Pull Request

Summary

• Describe the purpose of this PR in one or two sentences.

Checklist

• PR description includes: Closes #[issue_id]
• Tests added or updated
• ABI snapshot updated if contract sources changed (abis/ and COMEBACKHERE-contracts/)
• Screenshots attached if UI changed
• Documentation updated if needed

Notes

• For contract changes, verify ABI snapshot hygiene with make check-abi-snapshots.
• For UI changes, include screenshots or screen recordings to help reviewers.

closes
closes #883
closes #884
closes #885
closes #886

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