Function getRefreshTimer

getRefreshTimer(): null | Timeout
Gets the current refresh timer

Retrieves the NodeJS Timeout object for the scheduled token refresh operation, which can be used to check if a refresh is already scheduled.

Returns null | Timeout
Current refresh timer or null if no refresh is scheduled
Example
```
// Check if refresh is already scheduled before scheduling a new one
if (!getRefreshTimer()) {
  scheduleTokenRefresh(expiresIn);
}
```
Source
```
export function getRefreshTimer(): NodeJS.Timeout | null {
  return refreshTimer;
}
```
- Defined in src/services/auth/storage/token-state.ts:201

src