fix: claim EVM swap without connected wallet

[kiocos]

Summary by CodeRabbit

• New Features

  • Enabled ERC20 chain-swap claims without a connected wallet when gas abstraction is supported.
  • Added no-hop claims using a pasted destination address.
  • Added support for supported cross-chain swaps to pasted destinations.

• Bug Fixes

  • Improved signer handling for gas-sponsored claims.
  • Preserved claim amounts and destinations during rescue claims.
  • Prevented incorrect missing-signer messages when a valid rescue signer is available.

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Project	Deployment	Actions	Updated (UTC)
webapp-mainnet	Ready	Preview	Aug 1, 2026 7:16am
webapp-pro	Ready	Preview	Aug 1, 2026 7:16am

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 486abf67-1052-4d8e-a9aa-3d226a432f0d

📥 Commits

Reviewing files that changed from the base of the PR and between b6cc808 and fab76ad.

📒 Files selected for processing (3)

• e2e/arbitrum/lbtcUsdt0.spec.ts
• src/status/TransactionConfirmed.tsx
• tests/status/AutoClaimHops.spec.tsx

🚧 Files skipped from review as they are similar to previous changes (3)

• e2e/arbitrum/lbtcUsdt0.spec.ts
• src/status/TransactionConfirmed.tsx
• tests/status/AutoClaimHops.spec.tsx

---

📝 Walkthrough

Walkthrough

The no-hop claim flow now uses a gas-abstraction-aware signer. Tests cover walletless pasted-destination claims, gas top-up support, persisted amounts, rescue-signer usage, and an Arbitrum L-BTC-to-TBTC end-to-end claim.

Changes

Walletless claim signer

Layer / File(s)	Summary
Resolve the claim signer src/status/TransactionConfirmed.tsx	The no-hop claim path resolves a gas-abstraction-aware signer, rejects when unavailable, and passes it to the claim callback.
Validate walletless claim behavior tests/status/AutoClaimHops.spec.tsx, e2e/arbitrum/lbtcUsdt0.spec.ts	Tests configure gas top-up support and verify rescue-signer usage, pasted destination handling, persisted amount submission, missing-signer behavior, and completion of an L-BTC-to-TBTC claim.

Estimated code review effort: 2 (Simple) | ~10 minutes

Possibly related PRs

• BoltzExchange/boltz-web-app#1563: Both PRs modify the ClaimEvm claim flow and signer handling.
• BoltzExchange/boltz-web-app#1568: Both PRs update walletless EVM claim signer handling.
• BoltzExchange/boltz-web-app#1575: Both PRs use the gas-abstraction signer in rescue-related flows.

Suggested reviewers: kilrau, michael1011

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly summarizes the main change: enabling EVM swap claims without a connected wallet.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch claim-evm-without-wallet

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@e2e/arbitrum/lbtcUsdt0.spec.ts`:
- Around line 114-116: Update the assertion around getStoredSwap so it first
requires a non-null stored swap, then checks that the persisted swap’s dex is
undefined. Do not use optional chaining for this validation, ensuring the test
fails when the swap is missing or unreadable.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: bf054011-7f6e-453d-a93f-b5128780b7eb

📥 Commits

Reviewing files that changed from the base of the PR and between 12b4867 and b6cc808.

📒 Files selected for processing (3)

• e2e/arbitrum/lbtcUsdt0.spec.ts
• src/status/TransactionConfirmed.tsx
• tests/status/AutoClaimHops.spec.tsx

🚧 Files skipped from review as they are similar to previous changes (2)

• src/status/TransactionConfirmed.tsx
• tests/status/AutoClaimHops.spec.tsx