Function fetch_remote_credentials 

pub async fn fetch_remote_credentials(
    session_id: &str,
    base_url: &str,
    access_token: &str,
    timeout_ms: u64,
    trusted_device_token: Option<&str>,
) -> Option<RemoteCredentials>

Fetch remote credentials for a session via POST /v1/code/sessions/{id}/bridge

Arguments

• session_id - The session ID
• base_url - The API base URL
• access_token - OAuth access token
• timeout_ms - Request timeout in milliseconds
• trusted_device_token - Optional trusted device token

Returns the remote credentials on success, or None if fetch fails.