Add getEnabledConnections method and related types to ClientsManager

[developerkunal]

✅ Changes

This PR introduces a new method to the ClientsManager to support retrieving all enabled connections for a specific client.

What’s included:

• ➕ Added getEnabledConnections(clientId, options?) method to ClientsManager
• 📄 Introduced new types for the method’s parameters and response format
• 🧾 Updated API interface definitions to reflect the new endpoint
• 🧪 Added tests to validate the new behavior

---

🔗 References

• Get Enabled Connections

---

🧪 Testing

• ✅ Added unit tests for getEnabledConnections

• ✅ Verified behavior using mocked API responses

• This change adds unit test coverage

• This change adds integration test coverage (to be added in follow-up)

---

✅ Checklist

• I have read the [Auth0 general contribution guidelines](https://github.com/auth0/open-source-template/blob/master/GENERAL-CONTRIBUTING.md)
• I have read the [Auth0 Code of Conduct](https://github.com/auth0/open-source-template/blob/master/CODE-OF-CONDUCT.md)
• All existing and new tests complete without errors