Add sync and async endpoints for ACS call transfer

[kvsksraman]

Introduced new test endpoints in Call Controller to validate synchronous and asynchronous call transfer flows between ACS participants and target endpoints.

Purpose

Adds testable endpoints to simulate and validate both synchronous and asynchronous ACS call transfer scenarios.

Helps ensure that transfers between participants and target endpoints behave as expected in different timing contexts.

Does this introduce a breaking change?

[ ] Yes
[x] No

Pull Request Type

What kind of change does this Pull Request introduce?

[ ] Bugfix
[x] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Documentation content changes
[ ] Other... Please describe:

How to Test

• Get the code

git clone [repo-address]
cd [repo-name]
git checkout [branch-name]
npm install

• Test the code

1. Run the application.
2. Use Swagger to call the new synchronous and asynchronous test endpoints.
3. Monitor logs or responses to verify correct behavior of call transfers.

What to Check

Verify that the following are valid

• ...

Other Information

[kvsksraman]

@microsoft-github-policy-service agree