Maintains the registry of valid victim processes.

The Census queries the runtime for process information and filters candidates based on the target_applications configuration.

Filtering Logic

1. Retrieves the global process list.
2. Resolves the application associated with each PID.
3. Discards PIDs belonging to applications not in the allowlist (if an allowlist is configured).
4. Stores the resulting PID set for high-frequency access by the Scheduler.