feat: implement dispute resolution functionality with distribution ma…

[Amarjeet325]

📝 Pull Request Title

Implement moderator dispute resolution flow for escrow settlements

🛠️ Issue

• Closes Implement dispute resolution via POST /escrow/single-release/v2/resolve-dispute #313

📖 Description

• Add a moderator-facing dispute resolution flow for single-release escrows.
• Enable moderators to submit a dispute resolution transaction after defining fund distributions.
• Validate that the total distribution equals the escrow balance before submission.
• Submit the signed transaction through the existing Stellar send-transaction flow and update the escrow state to resolved.

✅ Changes made

• Added a new resolve-dispute API route for escrow disputes.
• Added a balance lookup endpoint to fetch escrow balance before validating distributions.
• Implemented a client-side dispute resolution helper that:
  • validates required input
  • fetches escrow balance
  • ensures distribution totals match the escrow balance
  • signs and submits the returned unsigned XDR
• Added a moderator UI panel in the escrow admin experience to configure distributions and resolve the dispute.
• Extended escrow state/types to support resolved status and final fund distribution display.

🖼️ Media (screenshots/videos)

• N/A

📜 Additional Notes

• This flow is currently wired for the moderator/dispute resolver role and uses the existing transaction submission path.

[diegoTech14]

Hello @Amarjeet325 I have assign the fund release issue to a new contributor and he'll develop the solution fast. Once it is finished you will be able to continue this one.

[diegoTech14]

Hi @Amarjeet325 PR #349 have been merged...could you continue this one please?

[Amarjeet325]

working on !!