fix(gasless): use quote gas fees for Max native swap with STX off

[rarquevaux]

Fix MAX native token swap failing with "insufficient gas" when STX is off

Problem

When performing a MAX native token swap (e.g., MAX ETH → USDC on Base) with:

• Smart Transactions (STX) OFF
• gasIncluded: true in the quote
• gasIncluded7702: false

The transaction failed with "insufficient gas" error.

Root cause: The quote provides pre-calculated gas fees in feeData.txFee (because the gas cost is included in the swap amount), but the single transaction path was re-estimating gas instead of using the quote's values. This re-estimation fails for MAX swaps because it doesn't account for the gas already deducted from the swap value.

Solution

Updated #handleEvmTransaction and #calculateGasFees in bridge-status-controller.ts to accept and use the quote's txFee when gasIncluded: true:

1. Pass txFee from the quote when calling #handleEvmTransaction for gasIncluded cases
2. Skip gas estimation in #calculateGasFees when txFee is provided
3. Convert decimal string values from the quote to hex format (matching the batch path behavior)

Changes

• bridge-status-controller.ts:
  • #handleEvmTransaction now accepts optional txFee parameter
  • #calculateGasFees uses provided txFee (converted to hex) instead of estimating when available
  • Pass txFee when gasIncluded: true in the submitTx flow

Tests Added

• should use quote txFee when gasIncluded is true and STX is off (Max native token swap)
• should estimate gas when gasIncluded is false and STX is off
• should use batch path when gasIncluded7702 is true regardless of STX setting

References

Checklist

• I've updated the test suite for new or updated code as appropriate
• I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
• I've communicated my changes to consumers by updating changelogs for packages I've changed
• I've introduced breaking changes in this PR and have prepared draft pull requests for clients and consumer packages to resolve them

---

Note

Use quote-provided txFee for gas-included EVM swaps (non-STX) to prevent insufficient gas on MAX native swaps; add tests and update changelog.

• BridgeStatusController (EVM submission):
  • Accept optional txFee in #handleEvmTransaction and pass it from submitTx when quote.gasIncluded is true.
  • In #calculateGasFees, use quote txFee (convert decimal strings to hex) instead of estimating; otherwise continue estimating.
  • Preserve batch path when gasIncluded7702 is true regardless of STX.
• Tests:
  • Add cases for using quote txFee (gasIncluded true, STX off), estimating when gasIncluded is false, and forcing batch path with gasIncluded7702.
• Changelog:
  • Document fix for MAX native token swap failing with insufficient gas when STX is off.

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