Feat/escrow

[nafiuishaaq]

Updated Escrow Contract

Implemented the escrow release/dispute flow in escrow.rs:

• Added initialize(env, admin) and admin storage via DataKey::Admin
• Added EscrowStatus::Released, Disputed, Resolved
• Added dispute_reason to Escrow
• Added new methods:
  • release_escrow(env, escrow_id) — buyer or admin can release active escrow
  • dispute_escrow(env, escrow_id, reason) — buyer or seller can raise a dispute
  • resolve_dispute(env, escrow_id, release_to_recipient) — admin resolves dispute
• Updated confirm_release to transition escrow to Released
• Added event emission for escrow_released and dispute_raised

Added Tests

Updated test.rs with coverage for:

• buyer releasing escrow
• dispute creation and admin resolution
• unauthorized non-party release failing
• confirm release path
• cancellation path

Validation

• Checked escrow.rs and test.rs for diagnostics: no errors found.

Made changes.

Closes #813
Closes #817

[vercel]

@nafiuishaaq is attempting to deploy a commit to the naijabuz's projects Team on Vercel.

A member of the Team first needs to authorize it.

[drips-wave]

@nafiuishaaq Great news! 🎉 Based on an automated assessment of this PR, the linked Wave issue(s) no longer count against your application limits.

You can now already apply to more issues while waiting for a review of this PR. Keep up the great work! 🚀

Learn more about application limits