Fixed: unable to undock with an aetheric drive (game requires locomotion)
Entities have a chance of dropping any item on board when killed
Mine behavior generalized to grid objects, used in dropped loot
Added tractor beam (not itemized yet) which pulls in nearby loot (and mines!)
Items are added to player inventory when they collide with the ship (and mines explode!)
Added console command to spawn turret
Converted entity materials to new fade shader
Implemented visibility system
Refactored per-instance entity code to run inside monobehavior on entity instances
Created state machine AI for enemy ships with basic patrol and combat routines
Removed legacy AI code (controller item behaviors)
Added automatic trigger group assignment for matched weapons
Created ship collision system
Created shield VFX and colliders