Cleanup System Carcara

Upon server startup (after 10 seconds):

- Removes all existing characters in the world.
- Removes AI (bots).
- Removes offline players.
- Removes ghosts from the save file (bugged entities or remnants of the save).

Every 1 minute:

- Checks and removes dead characters:
      - Corpses
      - Bugged bodies

Automatic entity cleanup:

- Removes dropped items from the ground after 2 minutes.
- Removes destroyed vehicles after 2 minutes of spawning.

Objective:

- Improve server performance.
- Prevent accumulation of useless entities.
- Reduce bugs caused by abandoned bodies, items, and vehicles.