Escrow Release Logic

[NengakDakup]

Description:
Upon successful fiat transfer, trigger the release of escrowed tokens to the merchant’s address via the smart contract.

Acceptance Criteria:

• Service to call smart contract for escrow release
• Handle transaction confirmation and errors
• Update trade status to completed

Subtasks:

• Smart contract call for release
• Transaction confirmation logic
• Error handling
• Update trade status