Show live escrow balances via `GET /helper/get-multiple-escrow-balance`

[grantfox-oss]

Context

Order and transaction views need to display the actual funds currently held in an escrow contract (e.g. to confirm funding succeeded, or to validate dispute distributions).

Task

Call GET /helper/get-multiple-escrow-balance with the relevant addresses (escrow contract IDs) and surface the balance in the order/transaction UI.

Acceptance criteria

• Balance shown on order detail views once an escrow is funded.
• Used by the dispute-resolution flow (issue 09) to validate that distribution amounts match the on-chain balance before submitting.

[midenotch]

I'd like to work on this issue.

My approach is to integrate the GET /helper/get-multiple-escrow-balance endpoint into the order and transaction detail views so the current on-chain escrow balance is fetched and displayed alongside the existing transaction information. I'll ensure the balance is loaded efficiently, handle loading and error states gracefully, and keep the UI consistent with the project's existing patterns.

I'll also integrate the retrieved balance into the dispute-resolution workflow so distribution amounts can be validated against the actual escrow balance before submission, preventing invalid payouts and improving user confidence in the process. Where appropriate, I'll leverage the existing data-fetching layer (e.g., React Query) to cache and refresh balances efficiently.

Finally, I'll verify the complete flow through testing, ensuring escrow balances are displayed correctly after funding and that the dispute flow correctly validates distributions against the on-chain balance before proceeding.

I have experience building React/Next.js applications, integrating blockchain-backed APIs, and implementing reliable financial interfaces where accuracy and a smooth user experience are essential.