Function setRefreshTokenState

setRefreshTokenState(token: null | string): void
Sets the in-memory refresh token

Updates the refresh token in memory for fast retrieval by future operations. This function does not persist the token to storage - that responsibility belongs to the token operations module.
Parameters
- token: null | string
  Refresh token to store in memory, or null to clear
Returns void
Example
```
// Update refresh token in memory after authentication
setRefreshTokenState(newRefreshToken);
```
Source
```
export function setRefreshTokenState(token: string | null): void {
  currentRefreshToken = token;
}
```
- Defined in src/services/auth/storage/token-state.ts:163

src