Implement `escrow.releaseMilestone()` wrapper

[meshackyaro]

Description

This issue aims to address the implementation of Implement escrow.releaseMilestone() wrapper.

The core objective is to: Construct the transaction for a client approving a partial payment.

By completing this feature, we will ensure that the TrustFlow protocol maintains its high standards for security, usability, and decentralized logic. This issue requires careful attention to the SDK Wrapper architecture and adherence to the existing project conventions.

When picking up this issue, please ensure you document any new dependencies or architectural decisions made during development.

Component

SDK Wrapper

Difficulty

🟡 Medium

Tasks

• Review existing Typescript abstract classes
• Implement SDK method for: Implement escrow.releaseMilestone() wrapper
• Ensure Tsup successfully exports to ESM and CJS
• Update typedoc comments for the new feature
• Write Jest tests validating XDR payloads
• Run npm run build to verify standard bundling

Acceptance Criteria

• Feature accurately implements the objective: Construct the transaction for a client approving a partial payment.
• Any PR that introduces TypeScript/Rust errors is automatically blocked
• CI pipeline runs in under 3 minutes per PR
• Code is properly reviewed and approved by codeowners

Estimated Time

4-8 hours