Function evictOldestSessions

evictOldestSessions(
    dir: string,
    neededBytes: number,
    activeHandle: string,
): Promise<number>
Evicts oldest inactive session files to free at least neededBytes, protecting active sessions.
Parameters
- dir: string
  History directory path.
- neededBytes: number
  Minimum bytes to free.
- activeHandle: string
  Active session handle to protect from eviction.
Returns Promise<number>
Total bytes freed.
- Defined in src/sessions/history/retention.ts:108