Refresh Oauth Token

Refresh an OAuth access token for a connection.

This endpoint refreshes expired OAuth tokens using the refresh token. It updates the credential with the new tokens.

Example:

POST /oauth/refresh/conn_abc123

Response:

{
    "status": "success",
    "connection_id": "conn_abc123",
    "expires_at": "2025-10-19T12:00:00Z"
}