Robust Spawner Initialization: I've added validation to ensure that spawners are only initialized if their required unit templates and warehouses are present in the mission. This prevents the script from attempting to run spawning logic that is destined to fail, making the system more resilient to mission editor configuration errors.
Clearer Tasking Logic: The task assignment logic is now more explicit and follows a clear order of priorities for units:
Defend Assigned Zone: A unit assigned as a defender will always patrol its home zone.
Reinforce Contested Zone: If a zone is under attack, any available non-defenders will automatically assist in its defense.
Fill Garrison: If a zone needs defenders, an available unit will be elected to become a permanent defender.
Attack Enemy: If a unit has no defensive tasks, it will be assigned to patrol towards the nearest enemy-held zone.
